./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 105e7597bd9cfde6146cefe87563ba1bc48309677fb8b2f1d1f421bc92453e6b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:06:48,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:06:48,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:06:48,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:06:48,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:06:48,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:06:48,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:06:48,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:06:48,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:06:48,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:06:48,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:06:48,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:06:48,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:06:48,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:06:48,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:06:48,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:06:48,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:06:48,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:06:48,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:06:48,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:06:48,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:06:48,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:06:48,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:06:48,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:06:48,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:06:48,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:06:48,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:06:48,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:06:48,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:06:48,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:06:48,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:06:48,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:06:48,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:06:48,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:06:48,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:06:48,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:06:48,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:06:48,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:06:48,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:06:48,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:06:48,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:06:48,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-02 23:06:48,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:06:48,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:06:48,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:06:48,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:06:48,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:06:48,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:06:48,770 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:06:48,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:06:48,770 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:06:48,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:06:48,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:06:48,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:06:48,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:06:48,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:06:48,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:06:48,772 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:06:48,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:06:48,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:06:48,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:06:48,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:06:48,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:06:48,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:06:48,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:06:48,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:06:48,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:06:48,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:06:48,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:06:48,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:06:48,775 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:06:48,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:06:48,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:06:48,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:06:48,776 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_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 105e7597bd9cfde6146cefe87563ba1bc48309677fb8b2f1d1f421bc92453e6b [2021-11-02 23:06:49,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:06:49,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:06:49,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:06:49,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:06:49,170 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:06:49,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/array-fpi/res2.c [2021-11-02 23:06:49,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/data/7ed9ed5dd/f16b47d477d8472383cfec1d689cfb58/FLAG5d809a239 [2021-11-02 23:06:49,795 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:06:49,796 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/sv-benchmarks/c/array-fpi/res2.c [2021-11-02 23:06:49,804 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/data/7ed9ed5dd/f16b47d477d8472383cfec1d689cfb58/FLAG5d809a239 [2021-11-02 23:06:50,126 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/data/7ed9ed5dd/f16b47d477d8472383cfec1d689cfb58 [2021-11-02 23:06:50,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:06:50,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:06:50,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:06:50,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:06:50,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:06:50,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a870f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50, skipping insertion in model container [2021-11-02 23:06:50,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:06:50,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:06:50,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/sv-benchmarks/c/array-fpi/res2.c[587,600] [2021-11-02 23:06:50,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:06:50,392 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:06:50,406 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/sv-benchmarks/c/array-fpi/res2.c[587,600] [2021-11-02 23:06:50,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:06:50,433 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:06:50,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50 WrapperNode [2021-11-02 23:06:50,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:06:50,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:06:50,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:06:50,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:06:50,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:06:50,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:06:50,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:06:50,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:06:50,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:06:50,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:06:50,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:06:50,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:06:50,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (1/1) ... [2021-11-02 23:06:50,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:06:50,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:50,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:06:50,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:06:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:06:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:06:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:06:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:06:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:06:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:06:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:06:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:06:51,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:06:51,089 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-02 23:06:51,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:06:51 BoogieIcfgContainer [2021-11-02 23:06:51,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:06:51,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:06:51,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:06:51,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:06:51,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:06:50" (1/3) ... [2021-11-02 23:06:51,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265447d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:06:51, skipping insertion in model container [2021-11-02 23:06:51,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:06:50" (2/3) ... [2021-11-02 23:06:51,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265447d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:06:51, skipping insertion in model container [2021-11-02 23:06:51,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:06:51" (3/3) ... [2021-11-02 23:06:51,117 INFO L111 eAbstractionObserver]: Analyzing ICFG res2.c [2021-11-02 23:06:51,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:06:51,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 23:06:51,210 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:06:51,224 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 23:06:51,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 23:06:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-02 23:06:51,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:51,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:51,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:06:51,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2021-11-02 23:06:51,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:51,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091873964] [2021-11-02 23:06:51,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:51,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:51,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:51,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091873964] [2021-11-02 23:06:51,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091873964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:51,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:51,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:06:51,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578366602] [2021-11-02 23:06:51,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:06:51,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:06:51,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:06:51,512 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:51,533 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2021-11-02 23:06:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:06:51,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-02 23:06:51,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:51,545 INFO L225 Difference]: With dead ends: 56 [2021-11-02 23:06:51,545 INFO L226 Difference]: Without dead ends: 26 [2021-11-02 23:06:51,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:06:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-02 23:06:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-02 23:06:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-11-02 23:06:51,593 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2021-11-02 23:06:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:51,594 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-11-02 23:06:51,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,595 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-02 23:06:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-02 23:06:51,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:51,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:51,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:06:51,598 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:06:51,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2021-11-02 23:06:51,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:51,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906349623] [2021-11-02 23:06:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:51,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:51,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:51,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906349623] [2021-11-02 23:06:51,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906349623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:06:51,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:06:51,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:06:51,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375699807] [2021-11-02 23:06:51,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:06:51,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:51,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:06:51,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:06:51,793 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:51,945 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2021-11-02 23:06:51,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:06:51,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-02 23:06:51,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:51,947 INFO L225 Difference]: With dead ends: 57 [2021-11-02 23:06:51,947 INFO L226 Difference]: Without dead ends: 38 [2021-11-02 23:06:51,949 INFO L786 BasicCegarLoop]: 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 [2021-11-02 23:06:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-02 23:06:51,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-11-02 23:06:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2021-11-02 23:06:51,957 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2021-11-02 23:06:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:51,957 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2021-11-02 23:06:51,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:51,958 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-11-02 23:06:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-02 23:06:51,959 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:51,960 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:51,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:06:51,960 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:06:51,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2021-11-02 23:06:51,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:51,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171098774] [2021-11-02 23:06:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:51,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:53,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:53,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171098774] [2021-11-02 23:06:53,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171098774] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:53,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993795036] [2021-11-02 23:06:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:53,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:53,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:53,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:53,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 23:06:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:53,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-02 23:06:53,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:54,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:06:54,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-02 23:06:54,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-02 23:06:54,553 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-02 23:06:54,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 27 [2021-11-02 23:06:54,985 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-02 23:06:54,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 32 [2021-11-02 23:06:55,399 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-02 23:06:55,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 41 [2021-11-02 23:06:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:06:55,715 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-02 23:06:55,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 30 [2021-11-02 23:06:55,953 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-02 23:06:55,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 28 [2021-11-02 23:06:56,110 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-02 23:06:56,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 40 [2021-11-02 23:06:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:56,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993795036] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:56,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:56,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 33 [2021-11-02 23:06:56,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735423113] [2021-11-02 23:06:56,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-02 23:06:56,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-02 23:06:56,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=882, Unknown=0, NotChecked=0, Total=1056 [2021-11-02 23:06:56,185 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:57,452 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2021-11-02 23:06:57,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-02 23:06:57,453 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-02 23:06:57,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:57,454 INFO L225 Difference]: With dead ends: 57 [2021-11-02 23:06:57,454 INFO L226 Difference]: Without dead ends: 53 [2021-11-02 23:06:57,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=335, Invalid=1827, Unknown=0, NotChecked=0, Total=2162 [2021-11-02 23:06:57,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-02 23:06:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2021-11-02 23:06:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2021-11-02 23:06:57,466 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 31 [2021-11-02 23:06:57,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:57,467 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2021-11-02 23:06:57,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:57,467 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2021-11-02 23:06:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-02 23:06:57,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:57,472 INFO L513 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:57,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:06:57,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:57,698 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:06:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1839245574, now seen corresponding path program 2 times [2021-11-02 23:06:57,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:57,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387946315] [2021-11-02 23:06:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:57,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:57,808 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-02 23:06:57,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:57,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387946315] [2021-11-02 23:06:57,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387946315] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:57,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534366858] [2021-11-02 23:06:57,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:06:57,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:57,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:57,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:57,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 23:06:57,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:06:57,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:06:57,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 23:06:57,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-02 23:06:58,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534366858] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:58,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:58,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-11-02 23:06:58,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685775938] [2021-11-02 23:06:58,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 23:06:58,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:58,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 23:06:58,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-02 23:06:58,118 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:58,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:58,365 INFO L93 Difference]: Finished difference Result 128 states and 151 transitions. [2021-11-02 23:06:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 23:06:58,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-02 23:06:58,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:58,367 INFO L225 Difference]: With dead ends: 128 [2021-11-02 23:06:58,367 INFO L226 Difference]: Without dead ends: 72 [2021-11-02 23:06:58,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:06:58,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-02 23:06:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2021-11-02 23:06:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-11-02 23:06:58,379 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 33 [2021-11-02 23:06:58,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:58,379 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-11-02 23:06:58,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:58,380 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-11-02 23:06:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-02 23:06:58,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:58,382 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:58,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:06:58,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:58,604 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:06:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:58,604 INFO L85 PathProgramCache]: Analyzing trace with hash 447877832, now seen corresponding path program 3 times [2021-11-02 23:06:58,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:58,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814477866] [2021-11-02 23:06:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:58,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 23:06:58,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:58,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814477866] [2021-11-02 23:06:58,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814477866] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:58,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153693174] [2021-11-02 23:06:58,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:06:58,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:58,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:58,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:58,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 23:06:58,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-02 23:06:58,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:06:58,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 23:06:58,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 23:06:58,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153693174] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:58,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:58,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-11-02 23:06:58,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353606081] [2021-11-02 23:06:58,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 23:06:58,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:58,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 23:06:58,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-02 23:06:58,957 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:59,120 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2021-11-02 23:06:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 23:06:59,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-02 23:06:59,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:59,121 INFO L225 Difference]: With dead ends: 65 [2021-11-02 23:06:59,121 INFO L226 Difference]: Without dead ends: 49 [2021-11-02 23:06:59,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-11-02 23:06:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-02 23:06:59,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2021-11-02 23:06:59,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 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) [2021-11-02 23:06:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2021-11-02 23:06:59,128 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 35 [2021-11-02 23:06:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:59,128 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2021-11-02 23:06:59,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-11-02 23:06:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-02 23:06:59,130 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:59,130 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:06:59,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:06:59,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:59,331 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:06:59,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1410382416, now seen corresponding path program 4 times [2021-11-02 23:06:59,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:59,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723359632] [2021-11-02 23:06:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:59,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:01,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:01,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723359632] [2021-11-02 23:07:01,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723359632] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:01,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139150917] [2021-11-02 23:07:01,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:07:01,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:01,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:01,475 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:01,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 23:07:01,663 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:07:01,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:01,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-02 23:07:01,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:01,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-02 23:07:01,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:07:01,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:01,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-02 23:07:02,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:02,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:02,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-02 23:07:02,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:02,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:02,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:02,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:02,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-11-02 23:07:02,702 INFO L354 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2021-11-02 23:07:02,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 56 treesize of output 42 [2021-11-02 23:07:03,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:03,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:03,093 INFO L354 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2021-11-02 23:07:03,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 53 [2021-11-02 23:07:03,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:03,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:03,435 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-02 23:07:03,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 61 [2021-11-02 23:07:03,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:03,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:03,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:03,838 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:03,861 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-02 23:07:03,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 78 treesize of output 70 [2021-11-02 23:07:04,234 INFO L354 Elim1Store]: treesize reduction 168, result has 14.7 percent of original size [2021-11-02 23:07:04,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 76 treesize of output 68 [2021-11-02 23:07:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:04,765 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:04,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:04,799 INFO L354 Elim1Store]: treesize reduction 96, result has 13.5 percent of original size [2021-11-02 23:07:04,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 70 treesize of output 77 [2021-11-02 23:07:05,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:05,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:05,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:05,224 INFO L354 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2021-11-02 23:07:05,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 69 treesize of output 83 [2021-11-02 23:07:05,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:05,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:05,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:05,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:05,821 INFO L354 Elim1Store]: treesize reduction 200, result has 12.7 percent of original size [2021-11-02 23:07:05,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 90 treesize of output 92 [2021-11-02 23:07:06,267 INFO L354 Elim1Store]: treesize reduction 276, result has 13.5 percent of original size [2021-11-02 23:07:06,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 89 treesize of output 91 [2021-11-02 23:07:06,623 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-11-02 23:07:06,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 70 [2021-11-02 23:07:06,696 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:06,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139150917] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:06,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:06,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 27] total 58 [2021-11-02 23:07:06,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481867117] [2021-11-02 23:07:06,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-02 23:07:06,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-02 23:07:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=2869, Unknown=0, NotChecked=0, Total=3306 [2021-11-02 23:07:06,701 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 58 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:13,666 INFO L93 Difference]: Finished difference Result 88 states and 99 transitions. [2021-11-02 23:07:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-02 23:07:13,667 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-02 23:07:13,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:13,670 INFO L225 Difference]: With dead ends: 88 [2021-11-02 23:07:13,670 INFO L226 Difference]: Without dead ends: 82 [2021-11-02 23:07:13,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=620, Invalid=4350, Unknown=0, NotChecked=0, Total=4970 [2021-11-02 23:07:13,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-02 23:07:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 67. [2021-11-02 23:07:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 66 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2021-11-02 23:07:13,686 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 43 [2021-11-02 23:07:13,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:13,687 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2021-11-02 23:07:13,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:13,687 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2021-11-02 23:07:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-02 23:07:13,689 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:13,689 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:13,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:13,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:13,905 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:07:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:13,905 INFO L85 PathProgramCache]: Analyzing trace with hash -313453870, now seen corresponding path program 5 times [2021-11-02 23:07:13,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:13,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720562880] [2021-11-02 23:07:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:13,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 23:07:14,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:14,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720562880] [2021-11-02 23:07:14,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720562880] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:14,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370904951] [2021-11-02 23:07:14,014 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:07:14,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:14,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:14,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:14,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 23:07:14,506 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-11-02 23:07:14,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:14,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 23:07:14,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 23:07:14,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370904951] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:14,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:14,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-02 23:07:14,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142233444] [2021-11-02 23:07:14,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 23:07:14,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:14,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 23:07:14,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:07:14,741 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:15,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:15,267 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2021-11-02 23:07:15,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-02 23:07:15,268 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-02 23:07:15,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:15,269 INFO L225 Difference]: With dead ends: 143 [2021-11-02 23:07:15,269 INFO L226 Difference]: Without dead ends: 62 [2021-11-02 23:07:15,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:07:15,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-02 23:07:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2021-11-02 23:07:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2021-11-02 23:07:15,285 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 45 [2021-11-02 23:07:15,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:15,285 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2021-11-02 23:07:15,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:15,286 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2021-11-02 23:07:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-02 23:07:15,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:15,290 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:15,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:15,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-02 23:07:15,507 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:07:15,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1101638372, now seen corresponding path program 6 times [2021-11-02 23:07:15,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:15,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624173871] [2021-11-02 23:07:15,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:15,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:19,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:19,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624173871] [2021-11-02 23:07:19,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624173871] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:19,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959095937] [2021-11-02 23:07:19,507 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:07:19,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:19,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:19,508 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:19,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 23:07:19,885 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-11-02 23:07:19,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:19,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-02 23:07:19,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:19,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:07:20,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-02 23:07:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-02 23:07:20,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:20,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2021-11-02 23:07:21,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-02 23:07:21,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,392 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-02 23:07:21,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 58 [2021-11-02 23:07:21,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:21,782 INFO L354 Elim1Store]: treesize reduction 268, result has 13.5 percent of original size [2021-11-02 23:07:21,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 20 case distinctions, treesize of input 67 treesize of output 70 [2021-11-02 23:07:22,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:22,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:22,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:22,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:22,738 INFO L354 Elim1Store]: treesize reduction 252, result has 7.4 percent of original size [2021-11-02 23:07:22,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 74 treesize of output 80 [2021-11-02 23:07:23,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:23,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:23,245 INFO L354 Elim1Store]: treesize reduction 161, result has 9.6 percent of original size [2021-11-02 23:07:23,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 82 treesize of output 92 [2021-11-02 23:07:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:23,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:23,706 INFO L354 Elim1Store]: treesize reduction 186, result has 5.6 percent of original size [2021-11-02 23:07:23,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 81 treesize of output 92 [2021-11-02 23:07:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:24,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:24,484 INFO L354 Elim1Store]: treesize reduction 138, result has 13.8 percent of original size [2021-11-02 23:07:24,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 86 treesize of output 84 [2021-11-02 23:07:24,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,709 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-02 23:07:24,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 60 [2021-11-02 23:07:24,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:25,061 INFO L354 Elim1Store]: treesize reduction 268, result has 13.5 percent of original size [2021-11-02 23:07:25,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 20 case distinctions, treesize of input 82 treesize of output 73 [2021-11-02 23:07:25,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:25,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:25,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:25,826 INFO L354 Elim1Store]: treesize reduction 244, result has 10.3 percent of original size [2021-11-02 23:07:25,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 74 treesize of output 88 [2021-11-02 23:07:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:26,274 INFO L354 Elim1Store]: treesize reduction 302, result has 5.6 percent of original size [2021-11-02 23:07:26,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 86 treesize of output 93 [2021-11-02 23:07:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:26,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:26,721 INFO L354 Elim1Store]: treesize reduction 162, result has 10.5 percent of original size [2021-11-02 23:07:26,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 92 treesize of output 94 [2021-11-02 23:07:27,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:27,549 INFO L354 Elim1Store]: treesize reduction 222, result has 10.5 percent of original size [2021-11-02 23:07:27,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 102 treesize of output 96 [2021-11-02 23:07:27,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:27,854 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-02 23:07:27,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 60 [2021-11-02 23:07:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:28,227 INFO L354 Elim1Store]: treesize reduction 268, result has 13.5 percent of original size [2021-11-02 23:07:28,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 20 case distinctions, treesize of input 82 treesize of output 73 [2021-11-02 23:07:28,852 INFO L354 Elim1Store]: treesize reduction 140, result has 4.8 percent of original size [2021-11-02 23:07:28,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 67 [2021-11-02 23:07:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:28,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959095937] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:28,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:28,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 46] total 89 [2021-11-02 23:07:28,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917785298] [2021-11-02 23:07:28,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-11-02 23:07:28,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:28,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-11-02 23:07:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=686, Invalid=7146, Unknown=0, NotChecked=0, Total=7832 [2021-11-02 23:07:28,947 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 89 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 89 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:36,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:36,250 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2021-11-02 23:07:36,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-02 23:07:36,251 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 89 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-02 23:07:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:36,252 INFO L225 Difference]: With dead ends: 153 [2021-11-02 23:07:36,253 INFO L226 Difference]: Without dead ends: 147 [2021-11-02 23:07:36,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6869 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=1444, Invalid=16112, Unknown=0, NotChecked=0, Total=17556 [2021-11-02 23:07:36,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-02 23:07:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 103. [2021-11-02 23:07:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.1274509803921569) internal successors, (115), 102 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2021-11-02 23:07:36,318 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 55 [2021-11-02 23:07:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:36,319 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2021-11-02 23:07:36,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 89 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2021-11-02 23:07:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-02 23:07:36,321 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:36,321 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:36,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:36,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:36,534 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:07:36,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1698014562, now seen corresponding path program 7 times [2021-11-02 23:07:36,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:36,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593487294] [2021-11-02 23:07:36,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:36,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-02 23:07:36,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:36,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593487294] [2021-11-02 23:07:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593487294] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:36,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138606510] [2021-11-02 23:07:36,641 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:07:36,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:36,642 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:36,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-02 23:07:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:37,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 23:07:37,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-02 23:07:37,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138606510] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:37,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:37,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-11-02 23:07:37,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472989853] [2021-11-02 23:07:37,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 23:07:37,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:37,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 23:07:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:07:37,529 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:37,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:37,867 INFO L93 Difference]: Finished difference Result 215 states and 239 transitions. [2021-11-02 23:07:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 23:07:37,867 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 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) Word has length 57 [2021-11-02 23:07:37,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:37,868 INFO L225 Difference]: With dead ends: 215 [2021-11-02 23:07:37,868 INFO L226 Difference]: Without dead ends: 108 [2021-11-02 23:07:37,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2021-11-02 23:07:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-02 23:07:37,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 90. [2021-11-02 23:07:37,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.101123595505618) internal successors, (98), 89 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2021-11-02 23:07:37,886 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 57 [2021-11-02 23:07:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:37,887 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2021-11-02 23:07:37,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2021-11-02 23:07:37,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-02 23:07:37,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:37,889 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:37,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-02 23:07:38,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:38,103 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:07:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 688684640, now seen corresponding path program 8 times [2021-11-02 23:07:38,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:38,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476245287] [2021-11-02 23:07:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:38,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-02 23:07:38,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:38,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476245287] [2021-11-02 23:07:38,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476245287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:38,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997665783] [2021-11-02 23:07:38,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:07:38,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:38,220 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:38,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-02 23:07:38,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:07:38,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:38,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 23:07:38,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-02 23:07:38,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997665783] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:38,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:38,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-11-02 23:07:38,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025775563] [2021-11-02 23:07:38,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 23:07:38,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 23:07:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:07:38,939 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:39,267 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2021-11-02 23:07:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:07:39,267 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 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) Word has length 59 [2021-11-02 23:07:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:39,268 INFO L225 Difference]: With dead ends: 101 [2021-11-02 23:07:39,268 INFO L226 Difference]: Without dead ends: 73 [2021-11-02 23:07:39,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:07:39,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-02 23:07:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2021-11-02 23:07:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0895522388059702) internal successors, (73), 67 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2021-11-02 23:07:39,279 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 59 [2021-11-02 23:07:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:39,279 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2021-11-02 23:07:39,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2021-11-02 23:07:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-02 23:07:39,281 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:39,281 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:07:39,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-02 23:07:39,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-02 23:07:39,503 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:07:39,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:39,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1255624168, now seen corresponding path program 9 times [2021-11-02 23:07:39,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:39,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181736899] [2021-11-02 23:07:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:39,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:44,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:44,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181736899] [2021-11-02 23:07:44,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181736899] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:44,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284856543] [2021-11-02 23:07:44,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:07:44,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:44,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:44,889 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:44,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-02 23:07:45,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-02 23:07:45,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:45,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 97 conjunts are in the unsatisfiable core [2021-11-02 23:07:45,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:45,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:07:45,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:45,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-02 23:07:46,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-02 23:07:46,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,255 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-02 23:07:46,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 44 [2021-11-02 23:07:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:46,654 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-02 23:07:46,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 59 [2021-11-02 23:07:47,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:47,309 INFO L354 Elim1Store]: treesize reduction 79, result has 1.3 percent of original size [2021-11-02 23:07:47,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 80 treesize of output 76 [2021-11-02 23:07:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,652 INFO L354 Elim1Store]: treesize reduction 71, result has 1.4 percent of original size [2021-11-02 23:07:47,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 72 [2021-11-02 23:07:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:47,896 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-02 23:07:47,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 100 treesize of output 87 [2021-11-02 23:07:48,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:48,338 INFO L354 Elim1Store]: treesize reduction 434, result has 11.2 percent of original size [2021-11-02 23:07:48,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 93 treesize of output 95 [2021-11-02 23:07:49,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:49,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:49,416 INFO L354 Elim1Store]: treesize reduction 444, result has 8.3 percent of original size [2021-11-02 23:07:49,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 95 treesize of output 104 [2021-11-02 23:07:49,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:49,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:49,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:50,052 INFO L354 Elim1Store]: treesize reduction 348, result has 9.6 percent of original size [2021-11-02 23:07:50,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 104 treesize of output 111 [2021-11-02 23:07:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:50,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:50,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:50,671 INFO L354 Elim1Store]: treesize reduction 526, result has 9.3 percent of original size [2021-11-02 23:07:50,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 116 [2021-11-02 23:07:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:51,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:51,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:51,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:51,270 INFO L354 Elim1Store]: treesize reduction 494, result has 9.4 percent of original size [2021-11-02 23:07:51,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 98 treesize of output 118 [2021-11-02 23:07:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:52,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:52,388 INFO L354 Elim1Store]: treesize reduction 79, result has 1.3 percent of original size [2021-11-02 23:07:52,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 80 treesize of output 76 [2021-11-02 23:07:52,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:52,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:52,772 INFO L354 Elim1Store]: treesize reduction 71, result has 1.4 percent of original size [2021-11-02 23:07:52,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 84 treesize of output 74 [2021-11-02 23:07:53,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:53,033 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-02 23:07:53,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 101 treesize of output 88 [2021-11-02 23:07:53,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:53,592 INFO L354 Elim1Store]: treesize reduction 434, result has 11.2 percent of original size [2021-11-02 23:07:53,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 88 treesize of output 94 [2021-11-02 23:07:54,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:54,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:54,774 INFO L354 Elim1Store]: treesize reduction 436, result has 9.9 percent of original size [2021-11-02 23:07:54,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 95 treesize of output 112 [2021-11-02 23:07:55,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:55,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:55,456 INFO L354 Elim1Store]: treesize reduction 518, result has 6.2 percent of original size [2021-11-02 23:07:55,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 102 treesize of output 108 [2021-11-02 23:07:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:56,087 INFO L354 Elim1Store]: treesize reduction 274, result has 7.1 percent of original size [2021-11-02 23:07:56,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 92 treesize of output 105 [2021-11-02 23:07:56,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:56,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:56,649 INFO L354 Elim1Store]: treesize reduction 314, result has 6.3 percent of original size [2021-11-02 23:07:56,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 98 treesize of output 118 [2021-11-02 23:07:57,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:57,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:57,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-11-02 23:07:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:07:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 63 [2021-11-02 23:07:58,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,418 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-02 23:07:58,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 72 [2021-11-02 23:07:58,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:07:58,877 INFO L354 Elim1Store]: treesize reduction 328, result has 13.0 percent of original size [2021-11-02 23:07:58,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 27 case distinctions, treesize of input 79 treesize of output 81 [2021-11-02 23:07:59,640 INFO L354 Elim1Store]: treesize reduction 174, result has 3.9 percent of original size [2021-11-02 23:07:59,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 103 treesize of output 67 [2021-11-02 23:07:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:59,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284856543] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:59,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:59,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 59] total 115 [2021-11-02 23:07:59,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985361685] [2021-11-02 23:07:59,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2021-11-02 23:07:59,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:59,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-11-02 23:07:59,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=12463, Unknown=0, NotChecked=0, Total=13110 [2021-11-02 23:07:59,763 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 115 states, 115 states have (on average 1.1217391304347826) internal successors, (129), 115 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:18,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:18,898 INFO L93 Difference]: Finished difference Result 210 states and 231 transitions. [2021-11-02 23:08:18,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-11-02 23:08:18,898 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 1.1217391304347826) internal successors, (129), 115 states have internal predecessors, (129), 0 states have call successors, (0), 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 67 [2021-11-02 23:08:18,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:18,899 INFO L225 Difference]: With dead ends: 210 [2021-11-02 23:08:18,900 INFO L226 Difference]: Without dead ends: 162 [2021-11-02 23:08:18,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12428 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=1663, Invalid=33492, Unknown=1, NotChecked=0, Total=35156 [2021-11-02 23:08:18,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-02 23:08:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 145. [2021-11-02 23:08:18,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.0972222222222223) internal successors, (158), 144 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 158 transitions. [2021-11-02 23:08:18,927 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 158 transitions. Word has length 67 [2021-11-02 23:08:18,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:18,927 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 158 transitions. [2021-11-02 23:08:18,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 1.1217391304347826) internal successors, (129), 115 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2021-11-02 23:08:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-02 23:08:18,930 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:18,930 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:18,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-02 23:08:19,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:19,147 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:08:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:19,147 INFO L85 PathProgramCache]: Analyzing trace with hash 789282922, now seen corresponding path program 10 times [2021-11-02 23:08:19,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:19,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066254241] [2021-11-02 23:08:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:19,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-02 23:08:19,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:19,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066254241] [2021-11-02 23:08:19,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066254241] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:19,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441478328] [2021-11-02 23:08:19,275 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:08:19,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:19,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:19,277 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:19,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-02 23:08:20,069 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:08:20,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:20,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 23:08:20,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-02 23:08:20,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441478328] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:20,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:20,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-11-02 23:08:20,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091187376] [2021-11-02 23:08:20,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-02 23:08:20,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:20,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-02 23:08:20,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:08:20,317 INFO L87 Difference]: Start difference. First operand 145 states and 158 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:20,688 INFO L93 Difference]: Finished difference Result 279 states and 305 transitions. [2021-11-02 23:08:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:08:20,689 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-02 23:08:20,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:20,690 INFO L225 Difference]: With dead ends: 279 [2021-11-02 23:08:20,690 INFO L226 Difference]: Without dead ends: 126 [2021-11-02 23:08:20,691 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:08:20,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-02 23:08:20,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2021-11-02 23:08:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0841121495327102) internal successors, (116), 107 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 116 transitions. [2021-11-02 23:08:20,704 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 116 transitions. Word has length 69 [2021-11-02 23:08:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:20,705 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 116 transitions. [2021-11-02 23:08:20,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 116 transitions. [2021-11-02 23:08:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-02 23:08:20,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:20,706 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:20,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:20,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:20,906 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:08:20,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:20,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1193722156, now seen corresponding path program 11 times [2021-11-02 23:08:20,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:20,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146161183] [2021-11-02 23:08:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:20,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-02 23:08:21,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:21,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146161183] [2021-11-02 23:08:21,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146161183] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:21,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456939739] [2021-11-02 23:08:21,041 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:08:21,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:21,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:21,054 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:21,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-02 23:08:23,443 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-02 23:08:23,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:23,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 23:08:23,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-02 23:08:23,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456939739] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:23,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:23,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-11-02 23:08:23,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877684306] [2021-11-02 23:08:23,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-02 23:08:23,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-02 23:08:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:08:23,697 INFO L87 Difference]: Start difference. First operand 108 states and 116 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:24,142 INFO L93 Difference]: Finished difference Result 119 states and 127 transitions. [2021-11-02 23:08:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-02 23:08:24,142 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 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) Word has length 71 [2021-11-02 23:08:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:24,143 INFO L225 Difference]: With dead ends: 119 [2021-11-02 23:08:24,143 INFO L226 Difference]: Without dead ends: 85 [2021-11-02 23:08:24,143 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2021-11-02 23:08:24,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-02 23:08:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 80. [2021-11-02 23:08:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0759493670886076) internal successors, (85), 79 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2021-11-02 23:08:24,151 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 71 [2021-11-02 23:08:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:24,151 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2021-11-02 23:08:24,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2021-11-02 23:08:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-02 23:08:24,152 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:24,152 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:08:24,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:24,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:24,353 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:08:24,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:24,353 INFO L85 PathProgramCache]: Analyzing trace with hash 164799668, now seen corresponding path program 12 times [2021-11-02 23:08:24,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:24,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559316849] [2021-11-02 23:08:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:24,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:31,212 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:31,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:31,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559316849] [2021-11-02 23:08:31,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559316849] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:31,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260120331] [2021-11-02 23:08:31,213 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:08:31,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:31,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:31,218 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:31,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-02 23:08:32,488 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-11-02 23:08:32,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:32,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 114 conjunts are in the unsatisfiable core [2021-11-02 23:08:32,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:32,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:08:32,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:32,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-02 23:08:32,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:32,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-02 23:08:33,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-02 23:08:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-02 23:08:33,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:33,590 INFO L354 Elim1Store]: treesize reduction 114, result has 23.5 percent of original size [2021-11-02 23:08:33,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 68 [2021-11-02 23:08:34,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,364 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:34,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,368 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-11-02 23:08:34,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 85 [2021-11-02 23:08:34,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:34,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:34,731 INFO L354 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2021-11-02 23:08:34,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 88 [2021-11-02 23:08:35,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:35,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,116 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-02 23:08:35,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 92 treesize of output 85 [2021-11-02 23:08:35,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:35,529 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-02 23:08:35,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 83 [2021-11-02 23:08:35,845 INFO L354 Elim1Store]: treesize reduction 336, result has 12.3 percent of original size [2021-11-02 23:08:35,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 87 treesize of output 89 [2021-11-02 23:08:36,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:36,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:36,925 INFO L354 Elim1Store]: treesize reduction 266, result has 7.0 percent of original size [2021-11-02 23:08:36,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 24 case distinctions, treesize of input 94 treesize of output 101 [2021-11-02 23:08:37,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:37,459 INFO L354 Elim1Store]: treesize reduction 178, result has 8.7 percent of original size [2021-11-02 23:08:37,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 22 case distinctions, treesize of input 101 treesize of output 102 [2021-11-02 23:08:37,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:37,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:38,016 INFO L354 Elim1Store]: treesize reduction 202, result has 7.8 percent of original size [2021-11-02 23:08:38,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 102 treesize of output 112 [2021-11-02 23:08:38,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:38,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:38,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:38,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:38,592 INFO L354 Elim1Store]: treesize reduction 222, result has 7.1 percent of original size [2021-11-02 23:08:38,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 32 case distinctions, treesize of input 96 treesize of output 119 [2021-11-02 23:08:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:39,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:39,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:39,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:39,127 INFO L354 Elim1Store]: treesize reduction 476, result has 13.1 percent of original size [2021-11-02 23:08:39,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 44 case distinctions, treesize of input 107 treesize of output 133 [2021-11-02 23:08:40,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:40,365 INFO L354 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2021-11-02 23:08:40,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 86 treesize of output 85 [2021-11-02 23:08:40,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:40,805 INFO L354 Elim1Store]: treesize reduction 61, result has 1.6 percent of original size [2021-11-02 23:08:40,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 88 [2021-11-02 23:08:41,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:41,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,265 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-02 23:08:41,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 94 treesize of output 91 [2021-11-02 23:08:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:41,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:41,736 INFO L354 Elim1Store]: treesize reduction 67, result has 1.5 percent of original size [2021-11-02 23:08:41,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 96 [2021-11-02 23:08:42,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:42,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:42,236 INFO L354 Elim1Store]: treesize reduction 296, result has 13.7 percent of original size [2021-11-02 23:08:42,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 87 treesize of output 89 [2021-11-02 23:08:43,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:43,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:43,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:43,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:43,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:43,444 INFO L354 Elim1Store]: treesize reduction 260, result has 9.1 percent of original size [2021-11-02 23:08:43,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 24 case distinctions, treesize of input 92 treesize of output 109 [2021-11-02 23:08:44,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:44,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,122 INFO L354 Elim1Store]: treesize reduction 296, result has 8.1 percent of original size [2021-11-02 23:08:44,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 99 treesize of output 119 [2021-11-02 23:08:44,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:44,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:44,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:44,862 INFO L354 Elim1Store]: treesize reduction 348, result has 5.4 percent of original size [2021-11-02 23:08:44,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 36 case distinctions, treesize of input 111 treesize of output 128 [2021-11-02 23:08:45,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:45,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:45,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:45,518 INFO L354 Elim1Store]: treesize reduction 222, result has 7.1 percent of original size [2021-11-02 23:08:45,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 8 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 99 treesize of output 122 [2021-11-02 23:08:45,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:45,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:45,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:45,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:46,045 INFO L354 Elim1Store]: treesize reduction 476, result has 13.1 percent of original size [2021-11-02 23:08:46,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 44 case distinctions, treesize of input 110 treesize of output 136 [2021-11-02 23:08:47,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:47,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:47,554 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:47,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:47,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:47,633 INFO L354 Elim1Store]: treesize reduction 476, result has 7.4 percent of original size [2021-11-02 23:08:47,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 139 treesize of output 153 [2021-11-02 23:08:48,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:48,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:48,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:48,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:48,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:48,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:48,440 INFO L354 Elim1Store]: treesize reduction 482, result has 7.3 percent of original size [2021-11-02 23:08:48,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 155 treesize of output 158 [2021-11-02 23:08:49,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,117 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,204 INFO L354 Elim1Store]: treesize reduction 488, result has 7.2 percent of original size [2021-11-02 23:08:49,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 9 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 153 treesize of output 161 [2021-11-02 23:08:49,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:08:49,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:49,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:08:50,021 INFO L354 Elim1Store]: treesize reduction 468, result has 7.5 percent of original size [2021-11-02 23:08:50,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 9 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 49 case distinctions, treesize of input 145 treesize of output 151 [2021-11-02 23:08:50,748 INFO L354 Elim1Store]: treesize reduction 806, result has 9.4 percent of original size [2021-11-02 23:08:50,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 77 case distinctions, treesize of input 151 treesize of output 160 [2021-11-02 23:08:52,364 INFO L354 Elim1Store]: treesize reduction 500, result has 0.6 percent of original size [2021-11-02 23:08:52,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 169 treesize of output 104 [2021-11-02 23:08:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:52,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260120331] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:52,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:52,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 138 [2021-11-02 23:08:52,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088027846] [2021-11-02 23:08:52,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2021-11-02 23:08:52,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2021-11-02 23:08:52,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=910, Invalid=17996, Unknown=0, NotChecked=0, Total=18906 [2021-11-02 23:08:52,550 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 138 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:16,554 INFO L93 Difference]: Finished difference Result 226 states and 243 transitions. [2021-11-02 23:09:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-02 23:09:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 138 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 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 79 [2021-11-02 23:09:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:16,555 INFO L225 Difference]: With dead ends: 226 [2021-11-02 23:09:16,555 INFO L226 Difference]: Without dead ends: 170 [2021-11-02 23:09:16,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17506 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=2313, Invalid=48087, Unknown=0, NotChecked=0, Total=50400 [2021-11-02 23:09:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-02 23:09:16,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2021-11-02 23:09:16,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.0820895522388059) internal successors, (145), 134 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2021-11-02 23:09:16,584 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 79 [2021-11-02 23:09:16,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:16,584 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2021-11-02 23:09:16,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2021-11-02 23:09:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-02 23:09:16,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:16,586 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:16,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:16,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-02 23:09:16,807 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:09:16,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:16,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1617722314, now seen corresponding path program 13 times [2021-11-02 23:09:16,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:16,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459344772] [2021-11-02 23:09:16,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:16,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-02 23:09:16,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:16,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459344772] [2021-11-02 23:09:16,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459344772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:16,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114858634] [2021-11-02 23:09:16,992 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:09:16,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:16,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:16,995 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:17,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-02 23:09:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:18,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 23:09:18,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-02 23:09:18,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114858634] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:18,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:18,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-11-02 23:09:18,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107186716] [2021-11-02 23:09:18,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-02 23:09:18,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-02 23:09:18,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:09:18,739 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:19,142 INFO L93 Difference]: Finished difference Result 264 states and 284 transitions. [2021-11-02 23:09:19,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-02 23:09:19,143 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 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 81 [2021-11-02 23:09:19,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:19,144 INFO L225 Difference]: With dead ends: 264 [2021-11-02 23:09:19,144 INFO L226 Difference]: Without dead ends: 144 [2021-11-02 23:09:19,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:09:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-02 23:09:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2021-11-02 23:09:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.072) internal successors, (134), 125 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:19,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2021-11-02 23:09:19,167 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 81 [2021-11-02 23:09:19,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:19,167 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2021-11-02 23:09:19,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2021-11-02 23:09:19,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-02 23:09:19,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:19,169 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:19,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:19,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-02 23:09:19,375 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:09:19,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:19,375 INFO L85 PathProgramCache]: Analyzing trace with hash 671638008, now seen corresponding path program 14 times [2021-11-02 23:09:19,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:19,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811744728] [2021-11-02 23:09:19,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:19,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-02 23:09:19,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:19,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811744728] [2021-11-02 23:09:19,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811744728] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:19,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853437649] [2021-11-02 23:09:19,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:09:19,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:19,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:19,562 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:19,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-02 23:09:21,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:09:21,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:09:21,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 23:09:21,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-02 23:09:21,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853437649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:21,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:21,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-11-02 23:09:21,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966880240] [2021-11-02 23:09:21,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-02 23:09:21,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-02 23:09:21,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:09:21,376 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:21,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:21,818 INFO L93 Difference]: Finished difference Result 137 states and 145 transitions. [2021-11-02 23:09:21,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-02 23:09:21,819 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 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 83 [2021-11-02 23:09:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:21,820 INFO L225 Difference]: With dead ends: 137 [2021-11-02 23:09:21,820 INFO L226 Difference]: Without dead ends: 97 [2021-11-02 23:09:21,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:09:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-02 23:09:21,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2021-11-02 23:09:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.065934065934066) internal successors, (97), 91 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2021-11-02 23:09:21,832 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 83 [2021-11-02 23:09:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:21,832 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2021-11-02 23:09:21,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2021-11-02 23:09:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-02 23:09:21,833 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:21,833 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:09:21,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:22,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-02 23:09:22,047 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:09:22,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1475913344, now seen corresponding path program 15 times [2021-11-02 23:09:22,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:22,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881995369] [2021-11-02 23:09:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:22,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 1 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:31,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:31,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881995369] [2021-11-02 23:09:31,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881995369] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:31,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69118794] [2021-11-02 23:09:31,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:09:31,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:31,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:31,805 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:31,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-02 23:09:34,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-02 23:09:34,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:09:34,650 WARN L261 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 131 conjunts are in the unsatisfiable core [2021-11-02 23:09:34,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:34,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:09:34,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:34,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-02 23:09:35,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-02 23:09:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-02 23:09:35,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,583 INFO L354 Elim1Store]: treesize reduction 84, result has 23.6 percent of original size [2021-11-02 23:09:35,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 56 [2021-11-02 23:09:35,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:35,958 INFO L354 Elim1Store]: treesize reduction 166, result has 18.6 percent of original size [2021-11-02 23:09:35,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 71 [2021-11-02 23:09:36,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:36,364 INFO L354 Elim1Store]: treesize reduction 170, result has 13.3 percent of original size [2021-11-02 23:09:36,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 72 treesize of output 86 [2021-11-02 23:09:37,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:37,325 INFO L354 Elim1Store]: treesize reduction 190, result has 0.5 percent of original size [2021-11-02 23:09:37,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 103 [2021-11-02 23:09:37,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:37,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:37,804 INFO L354 Elim1Store]: treesize reduction 199, result has 0.5 percent of original size [2021-11-02 23:09:37,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 106 [2021-11-02 23:09:38,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,314 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-02 23:09:38,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 99 treesize of output 99 [2021-11-02 23:09:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:38,651 INFO L354 Elim1Store]: treesize reduction 268, result has 0.4 percent of original size [2021-11-02 23:09:38,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 new quantified variables, introduced 18 case distinctions, treesize of input 101 treesize of output 110 [2021-11-02 23:09:39,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:39,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:39,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:39,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:39,364 INFO L354 Elim1Store]: treesize reduction 381, result has 0.3 percent of original size [2021-11-02 23:09:39,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 25 case distinctions, treesize of input 112 treesize of output 124 [2021-11-02 23:09:39,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:39,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:40,116 INFO L354 Elim1Store]: treesize reduction 802, result has 9.5 percent of original size [2021-11-02 23:09:40,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 54 case distinctions, treesize of input 115 treesize of output 130 [2021-11-02 23:09:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:41,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:41,833 INFO L354 Elim1Store]: treesize reduction 842, result has 5.4 percent of original size [2021-11-02 23:09:41,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 52 case distinctions, treesize of input 122 treesize of output 126 [2021-11-02 23:09:42,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:42,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:42,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:42,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:42,769 INFO L354 Elim1Store]: treesize reduction 424, result has 8.4 percent of original size [2021-11-02 23:09:42,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 new quantified variables, introduced 31 case distinctions, treesize of input 129 treesize of output 127 [2021-11-02 23:09:43,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:43,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:43,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:43,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:43,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:43,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:43,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:43,627 INFO L354 Elim1Store]: treesize reduction 472, result has 7.6 percent of original size [2021-11-02 23:09:43,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 37 case distinctions, treesize of input 120 treesize of output 135 [2021-11-02 23:09:44,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:44,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:44,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:44,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:44,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:44,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:44,224 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:44,398 INFO L354 Elim1Store]: treesize reduction 708, result has 9.9 percent of original size [2021-11-02 23:09:44,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 48 case distinctions, treesize of input 131 treesize of output 149 [2021-11-02 23:09:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:45,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:45,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:45,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:45,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:45,491 INFO L354 Elim1Store]: treesize reduction 902, result has 9.1 percent of original size [2021-11-02 23:09:45,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 58 case distinctions, treesize of input 143 treesize of output 164 [2021-11-02 23:09:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:46,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:46,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:46,640 INFO L354 Elim1Store]: treesize reduction 1018, result has 7.1 percent of original size [2021-11-02 23:09:46,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 155 treesize of output 179 [2021-11-02 23:09:48,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:48,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:48,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:48,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:48,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:48,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:48,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:48,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:48,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:48,894 INFO L354 Elim1Store]: treesize reduction 1120, result has 4.5 percent of original size [2021-11-02 23:09:48,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 4 disjoint index pairs (out of 91 index pairs), introduced 13 new quantified variables, introduced 84 case distinctions, treesize of input 184 treesize of output 196 [2021-11-02 23:09:49,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:49,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:49,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:49,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:49,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:49,685 INFO L354 Elim1Store]: treesize reduction 184, result has 0.5 percent of original size [2021-11-02 23:09:49,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 103 [2021-11-02 23:09:50,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,383 INFO L354 Elim1Store]: treesize reduction 178, result has 0.6 percent of original size [2021-11-02 23:09:50,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 107 treesize of output 101 [2021-11-02 23:09:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:50,782 INFO L354 Elim1Store]: treesize reduction 268, result has 0.4 percent of original size [2021-11-02 23:09:50,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 new quantified variables, introduced 18 case distinctions, treesize of input 116 treesize of output 113 [2021-11-02 23:09:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:51,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:51,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:51,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:51,475 INFO L354 Elim1Store]: treesize reduction 381, result has 0.3 percent of original size [2021-11-02 23:09:51,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 25 case distinctions, treesize of input 126 treesize of output 126 [2021-11-02 23:09:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:52,404 INFO L354 Elim1Store]: treesize reduction 802, result has 9.5 percent of original size [2021-11-02 23:09:52,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 54 case distinctions, treesize of input 125 treesize of output 132 [2021-11-02 23:09:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:56,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:56,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:56,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:56,437 INFO L354 Elim1Store]: treesize reduction 828, result has 7.0 percent of original size [2021-11-02 23:09:56,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 52 case distinctions, treesize of input 153 treesize of output 145 [2021-11-02 23:09:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:57,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:57,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:57,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:57,541 INFO L354 Elim1Store]: treesize reduction 746, result has 5.7 percent of original size [2021-11-02 23:09:57,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 50 case distinctions, treesize of input 125 treesize of output 133 [2021-11-02 23:09:58,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:58,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:58,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:58,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:58,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:58,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:58,684 INFO L354 Elim1Store]: treesize reduction 472, result has 7.6 percent of original size [2021-11-02 23:09:58,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 37 case distinctions, treesize of input 135 treesize of output 138 [2021-11-02 23:09:59,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:59,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:59,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:59,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:09:59,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:59,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:09:59,463 INFO L354 Elim1Store]: treesize reduction 708, result has 9.9 percent of original size [2021-11-02 23:09:59,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 5 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 48 case distinctions, treesize of input 138 treesize of output 150 [2021-11-02 23:10:00,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:00,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:00,478 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:00,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:00,678 INFO L354 Elim1Store]: treesize reduction 902, result has 9.1 percent of original size [2021-11-02 23:10:00,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 58 case distinctions, treesize of input 150 treesize of output 165 [2021-11-02 23:10:01,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:01,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:01,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:02,119 INFO L354 Elim1Store]: treesize reduction 1018, result has 7.1 percent of original size [2021-11-02 23:10:02,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 155 treesize of output 179 [2021-11-02 23:10:06,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:06,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:06,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:06,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:06,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:06,288 INFO L354 Elim1Store]: treesize reduction 190, result has 0.5 percent of original size [2021-11-02 23:10:06,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 103 [2021-11-02 23:10:07,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,096 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,101 INFO L354 Elim1Store]: treesize reduction 199, result has 0.5 percent of original size [2021-11-02 23:10:07,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 106 [2021-11-02 23:10:07,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:10:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:07,870 INFO L354 Elim1Store]: treesize reduction 184, result has 0.5 percent of original size [2021-11-02 23:10:07,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 103 [2021-11-02 23:10:08,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:08,603 INFO L354 Elim1Store]: treesize reduction 228, result has 0.4 percent of original size [2021-11-02 23:10:08,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 122 treesize of output 115 [2021-11-02 23:10:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:09,472 INFO L354 Elim1Store]: treesize reduction 281, result has 0.4 percent of original size [2021-11-02 23:10:09,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 128 treesize of output 127 [2021-11-02 23:10:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:10:10,451 INFO L354 Elim1Store]: treesize reduction 700, result has 10.7 percent of original size [2021-11-02 23:10:10,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 115 treesize of output 130 [2021-11-02 23:10:12,282 INFO L354 Elim1Store]: treesize reduction 543, result has 1.8 percent of original size [2021-11-02 23:10:12,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 139 treesize of output 84 [2021-11-02 23:10:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 30 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:12,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69118794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:10:12,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:10:12,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 162 [2021-11-02 23:10:12,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528152458] [2021-11-02 23:10:12,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 162 states [2021-11-02 23:10:12,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:12,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2021-11-02 23:10:12,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=959, Invalid=25121, Unknown=2, NotChecked=0, Total=26082 [2021-11-02 23:10:12,502 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 162 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 162 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:16,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:16,668 INFO L93 Difference]: Finished difference Result 296 states and 317 transitions. [2021-11-02 23:11:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-11-02 23:11:16,669 INFO L78 Accepts]: Start accepts. Automaton has has 162 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 162 states have internal predecessors, (177), 0 states have call successors, (0), 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 91 [2021-11-02 23:11:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:16,671 INFO L225 Difference]: With dead ends: 296 [2021-11-02 23:11:16,672 INFO L226 Difference]: Without dead ends: 232 [2021-11-02 23:11:16,678 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 290 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28839 ImplicationChecksByTransitivity, 82.5s TimeCoverageRelationStatistics Valid=3096, Invalid=81872, Unknown=4, NotChecked=0, Total=84972 [2021-11-02 23:11:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-02 23:11:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 155. [2021-11-02 23:11:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.0714285714285714) internal successors, (165), 154 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2021-11-02 23:11:16,714 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 91 [2021-11-02 23:11:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:16,715 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2021-11-02 23:11:16,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 162 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 162 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2021-11-02 23:11:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-02 23:11:16,716 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:16,716 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:16,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-02 23:11:16,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-02 23:11:16,927 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:16,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:16,927 INFO L85 PathProgramCache]: Analyzing trace with hash 509699586, now seen corresponding path program 16 times [2021-11-02 23:11:16,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:16,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931301456] [2021-11-02 23:11:16,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:16,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-02 23:11:17,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:17,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931301456] [2021-11-02 23:11:17,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931301456] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:17,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97736175] [2021-11-02 23:11:17,133 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:11:17,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:17,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:17,134 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:17,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-02 23:11:19,075 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:11:19,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:11:19,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-02 23:11:19,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-02 23:11:19,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97736175] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:19,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:11:19,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-11-02 23:11:19,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364766597] [2021-11-02 23:11:19,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-02 23:11:19,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-02 23:11:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:11:19,413 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand has 25 states, 25 states have (on average 2.8) internal successors, (70), 25 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:19,890 INFO L93 Difference]: Finished difference Result 300 states and 320 transitions. [2021-11-02 23:11:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:11:19,890 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 25 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) Word has length 93 [2021-11-02 23:11:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:19,891 INFO L225 Difference]: With dead ends: 300 [2021-11-02 23:11:19,891 INFO L226 Difference]: Without dead ends: 162 [2021-11-02 23:11:19,892 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:11:19,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-02 23:11:19,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2021-11-02 23:11:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.062937062937063) internal successors, (152), 143 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:19,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2021-11-02 23:11:19,913 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 93 [2021-11-02 23:11:19,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:19,913 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2021-11-02 23:11:19,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.8) internal successors, (70), 25 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2021-11-02 23:11:19,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-02 23:11:19,914 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:19,914 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:11:19,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:20,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:20,115 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:11:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash -168795964, now seen corresponding path program 17 times [2021-11-02 23:11:20,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:20,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623641115] [2021-11-02 23:11:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:20,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:20,397 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-02 23:11:20,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:20,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623641115] [2021-11-02 23:11:20,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623641115] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:11:20,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364975702] [2021-11-02 23:11:20,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:11:20,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:11:20,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:20,399 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:11:20,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-02 23:12:31,005 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-11-02 23:12:31,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:12:31,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-02 23:12:31,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2021-11-02 23:12:31,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364975702] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:12:31,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:12:31,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-11-02 23:12:31,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595133599] [2021-11-02 23:12:31,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-02 23:12:31,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:31,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-02 23:12:31,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:12:31,448 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 25 states, 25 states have (on average 3.12) internal successors, (78), 25 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:12:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:31,986 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2021-11-02 23:12:31,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:12:31,987 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.12) internal successors, (78), 25 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-02 23:12:31,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:31,987 INFO L225 Difference]: With dead ends: 155 [2021-11-02 23:12:31,987 INFO L226 Difference]: Without dead ends: 109 [2021-11-02 23:12:31,988 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2021-11-02 23:12:31,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-02 23:12:32,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-11-02 23:12:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.058252427184466) internal successors, (109), 103 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:12:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2021-11-02 23:12:32,001 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 95 [2021-11-02 23:12:32,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:32,001 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2021-11-02 23:12:32,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.12) internal successors, (78), 25 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:12:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2021-11-02 23:12:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-02 23:12:32,002 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:32,002 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:12:32,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:32,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:32,203 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:12:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:32,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1857317964, now seen corresponding path program 18 times [2021-11-02 23:12:32,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:32,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132315410] [2021-11-02 23:12:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:32,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 6 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:12:44,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:44,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132315410] [2021-11-02 23:12:44,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132315410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:12:44,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2170973] [2021-11-02 23:12:44,512 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:12:44,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:44,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:44,518 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:44,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-02 23:12:48,262 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-11-02 23:12:48,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:12:48,271 WARN L261 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-02 23:12:48,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:48,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:12:48,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:48,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-02 23:12:48,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:48,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:48,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-02 23:12:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-02 23:12:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 51 treesize of output 59 [2021-11-02 23:12:49,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:49,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 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 [2021-11-02 23:12:50,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 89 [2021-11-02 23:12:50,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:50,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 104 [2021-11-02 23:12:52,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:12:52,013 INFO L354 Elim1Store]: treesize reduction 334, result has 0.3 percent of original size [2021-11-02 23:12:52,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 119 treesize of output 124 [2021-11-02 23:12:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,544 INFO L354 Elim1Store]: treesize reduction 314, result has 0.3 percent of original size [2021-11-02 23:12:52,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 121 treesize of output 120 [2021-11-02 23:12:52,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:52,951 INFO L354 Elim1Store]: treesize reduction 424, result has 0.2 percent of original size [2021-11-02 23:12:52,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 125 treesize of output 133 [2021-11-02 23:12:53,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:53,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:53,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:53,613 INFO L354 Elim1Store]: treesize reduction 541, result has 0.2 percent of original size [2021-11-02 23:12:53,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 34 case distinctions, treesize of input 130 treesize of output 145 [2021-11-02 23:12:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:54,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:54,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:54,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:54,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:54,435 INFO L354 Elim1Store]: treesize reduction 658, result has 0.2 percent of original size [2021-11-02 23:12:54,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 5 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 41 case distinctions, treesize of input 140 treesize of output 158 [2021-11-02 23:12:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:55,212 INFO L354 Elim1Store]: treesize reduction 775, result has 0.1 percent of original size [2021-11-02 23:12:55,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 48 case distinctions, treesize of input 150 treesize of output 171 [2021-11-02 23:12:56,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:56,475 INFO L354 Elim1Store]: treesize reduction 1314, result has 8.0 percent of original size [2021-11-02 23:12:56,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 11 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 89 case distinctions, treesize of input 151 treesize of output 175 [2021-11-02 23:12:58,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:12:58,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:12:58,941 INFO L354 Elim1Store]: treesize reduction 1548, result has 5.5 percent of original size [2021-11-02 23:12:58,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 2 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 89 case distinctions, treesize of input 158 treesize of output 169 [2021-11-02 23:13:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:00,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:00,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:00,274 INFO L354 Elim1Store]: treesize reduction 988, result has 7.6 percent of original size [2021-11-02 23:13:00,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 62 case distinctions, treesize of input 194 treesize of output 173 [2021-11-02 23:13:01,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:01,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:01,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:01,386 INFO L354 Elim1Store]: treesize reduction 1262, result has 6.7 percent of original size [2021-11-02 23:13:01,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 3 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 74 case distinctions, treesize of input 147 treesize of output 165 [2021-11-02 23:13:02,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:02,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:02,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:02,814 INFO L354 Elim1Store]: treesize reduction 1072, result has 8.2 percent of original size [2021-11-02 23:13:02,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 3 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 61 case distinctions, treesize of input 159 treesize of output 174 [2021-11-02 23:13:04,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:04,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:04,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:04,364 INFO L354 Elim1Store]: treesize reduction 1294, result has 7.7 percent of original size [2021-11-02 23:13:04,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 3 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 72 case distinctions, treesize of input 171 treesize of output 189 [2021-11-02 23:13:05,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:05,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:05,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:06,094 INFO L354 Elim1Store]: treesize reduction 1534, result has 7.3 percent of original size [2021-11-02 23:13:06,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 3 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 84 case distinctions, treesize of input 174 treesize of output 203 [2021-11-02 23:13:07,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:07,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:07,918 INFO L354 Elim1Store]: treesize reduction 1528, result has 5.2 percent of original size [2021-11-02 23:13:07,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 13 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 87 case distinctions, treesize of input 178 treesize of output 216 [2021-11-02 23:13:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:10,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:10,586 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:10,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:10,945 INFO L354 Elim1Store]: treesize reduction 1770, result has 3.3 percent of original size [2021-11-02 23:13:10,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 2 disjoint index pairs (out of 120 index pairs), introduced 15 new quantified variables, introduced 115 case distinctions, treesize of input 207 treesize of output 233 [2021-11-02 23:13:12,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:12,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:12,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:12,416 INFO L354 Elim1Store]: treesize reduction 1730, result has 3.4 percent of original size [2021-11-02 23:13:12,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 2 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 103 case distinctions, treesize of input 211 treesize of output 231 [2021-11-02 23:13:13,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:13,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:13,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:13,667 INFO L354 Elim1Store]: treesize reduction 1970, result has 3.0 percent of original size [2021-11-02 23:13:13,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 2 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 117 case distinctions, treesize of input 224 treesize of output 245 [2021-11-02 23:13:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:14,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:14,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:15,418 INFO L354 Elim1Store]: treesize reduction 2241, result has 2.6 percent of original size [2021-11-02 23:13:15,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 2 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 132 case distinctions, treesize of input 223 treesize of output 255 [2021-11-02 23:13:16,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:16,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:16,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:17,316 INFO L354 Elim1Store]: treesize reduction 2530, result has 2.4 percent of original size [2021-11-02 23:13:17,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 2 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 148 case distinctions, treesize of input 233 treesize of output 268 [2021-11-02 23:13:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:18,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:18,609 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:19,397 INFO L354 Elim1Store]: treesize reduction 2837, result has 2.1 percent of original size [2021-11-02 23:13:19,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 2 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 165 case distinctions, treesize of input 238 treesize of output 280 [2021-11-02 23:13:20,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:22,396 INFO L354 Elim1Store]: treesize reduction 3314, result has 5.0 percent of original size [2021-11-02 23:13:22,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 11 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 207 case distinctions, treesize of input 239 treesize of output 284 [2021-11-02 23:13:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:25,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:27,708 INFO L354 Elim1Store]: treesize reduction 3566, result has 4.3 percent of original size [2021-11-02 23:13:27,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 2 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 207 case distinctions, treesize of input 246 treesize of output 288 [2021-11-02 23:13:29,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:29,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:29,660 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:31,107 INFO L354 Elim1Store]: treesize reduction 3092, result has 4.0 percent of original size [2021-11-02 23:13:31,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 2 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 185 case distinctions, treesize of input 268 treesize of output 269 [2021-11-02 23:13:32,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:32,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:32,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:33,305 INFO L354 Elim1Store]: treesize reduction 2490, result has 5.7 percent of original size [2021-11-02 23:13:33,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 2 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 149 case distinctions, treesize of input 246 treesize of output 269 [2021-11-02 23:13:35,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:35,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:35,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:36,576 INFO L354 Elim1Store]: treesize reduction 2831, result has 5.4 percent of original size [2021-11-02 23:13:36,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 2 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 166 case distinctions, treesize of input 240 treesize of output 282 [2021-11-02 23:13:38,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:38,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:38,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:38,449 INFO L354 Elim1Store]: treesize reduction 1294, result has 7.7 percent of original size [2021-11-02 23:13:38,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 72 case distinctions, treesize of input 154 treesize of output 186 [2021-11-02 23:13:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:39,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:40,246 INFO L354 Elim1Store]: treesize reduction 1534, result has 7.3 percent of original size [2021-11-02 23:13:40,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 2 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 84 case distinctions, treesize of input 166 treesize of output 201 [2021-11-02 23:13:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:41,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:41,965 INFO L354 Elim1Store]: treesize reduction 1528, result has 5.2 percent of original size [2021-11-02 23:13:41,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 12 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 87 case distinctions, treesize of input 178 treesize of output 216 [2021-11-02 23:13:45,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:45,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:45,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:45,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:45,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:45,547 INFO L354 Elim1Store]: treesize reduction 1770, result has 3.3 percent of original size [2021-11-02 23:13:45,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 2 disjoint index pairs (out of 120 index pairs), introduced 15 new quantified variables, introduced 115 case distinctions, treesize of input 207 treesize of output 233 [2021-11-02 23:13:47,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:47,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:47,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:47,423 INFO L354 Elim1Store]: treesize reduction 1730, result has 3.4 percent of original size [2021-11-02 23:13:47,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 2 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 103 case distinctions, treesize of input 205 treesize of output 229 [2021-11-02 23:13:48,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:48,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:48,736 INFO L354 Elim1Store]: treesize reduction 1970, result has 3.0 percent of original size [2021-11-02 23:13:48,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 2 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 117 case distinctions, treesize of input 207 treesize of output 240 [2021-11-02 23:13:50,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:50,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:50,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:50,756 INFO L354 Elim1Store]: treesize reduction 2241, result has 2.6 percent of original size [2021-11-02 23:13:50,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 2 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 132 case distinctions, treesize of input 218 treesize of output 254 [2021-11-02 23:13:52,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:52,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:52,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:52,972 INFO L354 Elim1Store]: treesize reduction 2530, result has 2.4 percent of original size [2021-11-02 23:13:52,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 2 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 148 case distinctions, treesize of input 228 treesize of output 267 [2021-11-02 23:13:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:54,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:54,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:13:55,383 INFO L354 Elim1Store]: treesize reduction 2837, result has 2.1 percent of original size [2021-11-02 23:13:55,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 2 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 165 case distinctions, treesize of input 238 treesize of output 280 [2021-11-02 23:13:57,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:57,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:13:58,713 INFO L354 Elim1Store]: treesize reduction 3314, result has 5.0 percent of original size [2021-11-02 23:13:58,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 11 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 207 case distinctions, treesize of input 239 treesize of output 284 [2021-11-02 23:14:02,819 INFO L354 Elim1Store]: treesize reduction 2863, result has 0.6 percent of original size [2021-11-02 23:14:02,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 1 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 260 treesize of output 137 [2021-11-02 23:14:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 72 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:14:03,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2170973] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:14:03,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:14:03,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 186 [2021-11-02 23:14:03,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066145352] [2021-11-02 23:14:03,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 186 states [2021-11-02 23:14:03,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:14:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2021-11-02 23:14:03,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1586, Invalid=32824, Unknown=0, NotChecked=0, Total=34410 [2021-11-02 23:14:03,152 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 186 states, 186 states have (on average 1.0806451612903225) internal successors, (201), 186 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:37,382 INFO L93 Difference]: Finished difference Result 281 states and 298 transitions. [2021-11-02 23:15:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-11-02 23:15:37,382 INFO L78 Accepts]: Start accepts. Automaton has has 186 states, 186 states have (on average 1.0806451612903225) internal successors, (201), 186 states have internal predecessors, (201), 0 states have call successors, (0), 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 103 [2021-11-02 23:15:37,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:15:37,383 INFO L225 Difference]: With dead ends: 281 [2021-11-02 23:15:37,383 INFO L226 Difference]: Without dead ends: 209 [2021-11-02 23:15:37,387 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32211 ImplicationChecksByTransitivity, 104.6s TimeCoverageRelationStatistics Valid=3482, Invalid=86214, Unknown=4, NotChecked=0, Total=89700 [2021-11-02 23:15:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-02 23:15:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 175. [2021-11-02 23:15:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.0632183908045978) internal successors, (185), 174 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 185 transitions. [2021-11-02 23:15:37,415 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 185 transitions. Word has length 103 [2021-11-02 23:15:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:15:37,415 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 185 transitions. [2021-11-02 23:15:37,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 186 states, 186 states have (on average 1.0806451612903225) internal successors, (201), 186 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 185 transitions. [2021-11-02 23:15:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-02 23:15:37,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:15:37,417 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:15:37,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:37,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:37,621 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:15:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:37,621 INFO L85 PathProgramCache]: Analyzing trace with hash 435430862, now seen corresponding path program 19 times [2021-11-02 23:15:37,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:37,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326855326] [2021-11-02 23:15:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:37,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-02 23:15:37,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:37,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326855326] [2021-11-02 23:15:37,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326855326] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:37,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285601515] [2021-11-02 23:15:37,864 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:15:37,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:37,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:37,865 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:15:37,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-02 23:15:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:40,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-02 23:15:40,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-11-02 23:15:40,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285601515] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:40,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:15:40,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-11-02 23:15:40,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444718183] [2021-11-02 23:15:40,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-02 23:15:40,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:40,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-02 23:15:40,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:15:40,897 INFO L87 Difference]: Start difference. First operand 175 states and 185 transitions. Second operand has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:41,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:41,512 INFO L93 Difference]: Finished difference Result 336 states and 356 transitions. [2021-11-02 23:15:41,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-02 23:15:41,513 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 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 105 [2021-11-02 23:15:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:15:41,514 INFO L225 Difference]: With dead ends: 336 [2021-11-02 23:15:41,515 INFO L226 Difference]: Without dead ends: 180 [2021-11-02 23:15:41,515 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2021-11-02 23:15:41,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-02 23:15:41,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2021-11-02 23:15:41,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.0559006211180124) internal successors, (170), 161 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 170 transitions. [2021-11-02 23:15:41,543 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 170 transitions. Word has length 105 [2021-11-02 23:15:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:15:41,543 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 170 transitions. [2021-11-02 23:15:41,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 170 transitions. [2021-11-02 23:15:41,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-02 23:15:41,544 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:15:41,544 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:15:41,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:41,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:41,759 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:15:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash -140657264, now seen corresponding path program 20 times [2021-11-02 23:15:41,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:41,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595716230] [2021-11-02 23:15:41,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:41,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-02 23:15:41,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:41,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595716230] [2021-11-02 23:15:41,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595716230] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:41,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817351031] [2021-11-02 23:15:41,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:15:41,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:41,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:41,995 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:15:42,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-02 23:15:44,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:15:44,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:15:44,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-02 23:15:44,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2021-11-02 23:15:45,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817351031] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:45,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:15:45,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-11-02 23:15:45,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500607730] [2021-11-02 23:15:45,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-02 23:15:45,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:45,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-02 23:15:45,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:15:45,240 INFO L87 Difference]: Start difference. First operand 162 states and 170 transitions. Second operand has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:45,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:45,813 INFO L93 Difference]: Finished difference Result 173 states and 181 transitions. [2021-11-02 23:15:45,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-02 23:15:45,814 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 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 107 [2021-11-02 23:15:45,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:15:45,815 INFO L225 Difference]: With dead ends: 173 [2021-11-02 23:15:45,815 INFO L226 Difference]: Without dead ends: 121 [2021-11-02 23:15:45,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=429, Invalid=1463, Unknown=0, NotChecked=0, Total=1892 [2021-11-02 23:15:45,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-02 23:15:45,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2021-11-02 23:15:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0521739130434782) internal successors, (121), 115 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 121 transitions. [2021-11-02 23:15:45,845 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 121 transitions. Word has length 107 [2021-11-02 23:15:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:15:45,846 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 121 transitions. [2021-11-02 23:15:45,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 121 transitions. [2021-11-02 23:15:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:15:45,846 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:15:45,847 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:15:45,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:46,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-02 23:15:46,051 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 23:15:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1134091544, now seen corresponding path program 21 times [2021-11-02 23:15:46,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:46,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157066482] [2021-11-02 23:15:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:46,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:16:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 17 proven. 367 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:16:00,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:16:00,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157066482] [2021-11-02 23:16:00,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157066482] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:16:00,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835854496] [2021-11-02 23:16:00,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:16:00,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:16:00,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:16:00,448 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:16:00,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dacaca4-c5e4-4206-8887-6e976e71f0f8/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-02 23:16:06,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-02 23:16:06,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:16:06,957 WARN L261 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 170 conjunts are in the unsatisfiable core [2021-11-02 23:16:06,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:16:07,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:16:07,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-02 23:16:07,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-02 23:16:07,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:07,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-02 23:16:08,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-02 23:16:08,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,424 INFO L354 Elim1Store]: treesize reduction 114, result has 23.5 percent of original size [2021-11-02 23:16:08,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 68 [2021-11-02 23:16:08,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:08,905 INFO L354 Elim1Store]: treesize reduction 211, result has 18.2 percent of original size [2021-11-02 23:16:08,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 69 treesize of output 83 [2021-11-02 23:16:09,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:09,448 INFO L354 Elim1Store]: treesize reduction 326, result has 15.3 percent of original size [2021-11-02 23:16:09,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 98 [2021-11-02 23:16:10,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:10,100 INFO L354 Elim1Store]: treesize reduction 288, result has 10.8 percent of original size [2021-11-02 23:16:10,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 93 treesize of output 113 [2021-11-02 23:16:11,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:11,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,338 INFO L354 Elim1Store]: treesize reduction 349, result has 0.3 percent of original size [2021-11-02 23:16:11,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 26 case distinctions, treesize of input 122 treesize of output 130 [2021-11-02 23:16:11,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:11,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:11,940 INFO L354 Elim1Store]: treesize reduction 341, result has 0.3 percent of original size [2021-11-02 23:16:11,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 26 case distinctions, treesize of input 126 treesize of output 128 [2021-11-02 23:16:12,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:12,549 INFO L354 Elim1Store]: treesize reduction 341, result has 0.3 percent of original size [2021-11-02 23:16:12,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 26 case distinctions, treesize of input 138 treesize of output 132 [2021-11-02 23:16:13,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,172 INFO L354 Elim1Store]: treesize reduction 333, result has 0.3 percent of original size [2021-11-02 23:16:13,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 22 case distinctions, treesize of input 141 treesize of output 131 [2021-11-02 23:16:13,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:13,580 INFO L354 Elim1Store]: treesize reduction 454, result has 0.2 percent of original size [2021-11-02 23:16:13,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 case distinctions, treesize of input 143 treesize of output 142 [2021-11-02 23:16:14,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:14,270 INFO L354 Elim1Store]: treesize reduction 600, result has 0.2 percent of original size [2021-11-02 23:16:14,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 133 treesize of output 151 [2021-11-02 23:16:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,038 INFO L354 Elim1Store]: treesize reduction 764, result has 0.1 percent of original size [2021-11-02 23:16:15,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 49 case distinctions, treesize of input 143 treesize of output 164 [2021-11-02 23:16:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:15,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:16,194 INFO L354 Elim1Store]: treesize reduction 1266, result has 8.2 percent of original size [2021-11-02 23:16:16,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 12 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 142 treesize of output 166 [2021-11-02 23:16:17,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:17,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:17,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:18,406 INFO L354 Elim1Store]: treesize reduction 1340, result has 4.8 percent of original size [2021-11-02 23:16:18,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 87 case distinctions, treesize of input 149 treesize of output 160 [2021-11-02 23:16:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:19,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:19,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:19,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:19,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:19,584 INFO L354 Elim1Store]: treesize reduction 806, result has 6.2 percent of original size [2021-11-02 23:16:19,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 60 case distinctions, treesize of input 138 treesize of output 153 [2021-11-02 23:16:20,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:20,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:20,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:20,681 INFO L354 Elim1Store]: treesize reduction 730, result has 6.4 percent of original size [2021-11-02 23:16:20,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 57 case distinctions, treesize of input 143 treesize of output 164 [2021-11-02 23:16:21,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:21,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:21,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:21,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:21,944 INFO L354 Elim1Store]: treesize reduction 820, result has 5.7 percent of original size [2021-11-02 23:16:21,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 145 treesize of output 177 [2021-11-02 23:16:23,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:23,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:23,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:23,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:23,269 INFO L354 Elim1Store]: treesize reduction 858, result has 4.8 percent of original size [2021-11-02 23:16:23,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 12 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 72 case distinctions, treesize of input 148 treesize of output 183 [2021-11-02 23:16:24,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,380 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:24,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:24,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:24,556 INFO L354 Elim1Store]: treesize reduction 940, result has 4.4 percent of original size [2021-11-02 23:16:24,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 17 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 80 case distinctions, treesize of input 160 treesize of output 198 [2021-11-02 23:16:25,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:25,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:25,760 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:25,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:25,949 INFO L354 Elim1Store]: treesize reduction 1022, result has 4.0 percent of original size [2021-11-02 23:16:25,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 23 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 88 case distinctions, treesize of input 172 treesize of output 213 [2021-11-02 23:16:27,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,248 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:27,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:27,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:27,461 INFO L354 Elim1Store]: treesize reduction 1104, result has 3.7 percent of original size [2021-11-02 23:16:27,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 31 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 96 case distinctions, treesize of input 184 treesize of output 228 [2021-11-02 23:16:31,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:31,065 INFO L354 Elim1Store]: treesize reduction 349, result has 0.3 percent of original size [2021-11-02 23:16:31,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 26 case distinctions, treesize of input 125 treesize of output 133 [2021-11-02 23:16:31,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:31,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:31,761 INFO L354 Elim1Store]: treesize reduction 361, result has 0.3 percent of original size [2021-11-02 23:16:31,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 26 case distinctions, treesize of input 130 treesize of output 136 [2021-11-02 23:16:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,492 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:32,497 INFO L354 Elim1Store]: treesize reduction 341, result has 0.3 percent of original size [2021-11-02 23:16:32,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 26 case distinctions, treesize of input 125 treesize of output 131 [2021-11-02 23:16:33,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,299 INFO L354 Elim1Store]: treesize reduction 333, result has 0.3 percent of original size [2021-11-02 23:16:33,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 22 case distinctions, treesize of input 131 treesize of output 131 [2021-11-02 23:16:33,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:33,812 INFO L354 Elim1Store]: treesize reduction 454, result has 0.2 percent of original size [2021-11-02 23:16:33,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 case distinctions, treesize of input 133 treesize of output 142 [2021-11-02 23:16:34,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:34,698 INFO L354 Elim1Store]: treesize reduction 600, result has 0.2 percent of original size [2021-11-02 23:16:34,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 143 treesize of output 155 [2021-11-02 23:16:35,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:35,583 INFO L354 Elim1Store]: treesize reduction 764, result has 0.1 percent of original size [2021-11-02 23:16:35,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 49 case distinctions, treesize of input 172 treesize of output 171 [2021-11-02 23:16:36,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:36,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:36,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:36,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:36,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:36,979 INFO L354 Elim1Store]: treesize reduction 1266, result has 8.2 percent of original size [2021-11-02 23:16:36,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 12 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 150 treesize of output 170 [2021-11-02 23:16:41,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:41,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:41,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:41,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:41,637 INFO L354 Elim1Store]: treesize reduction 1322, result has 6.1 percent of original size [2021-11-02 23:16:41,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 87 case distinctions, treesize of input 152 treesize of output 181 [2021-11-02 23:16:42,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:42,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:42,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:42,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:42,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:42,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:42,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:42,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:43,260 INFO L354 Elim1Store]: treesize reduction 1289, result has 5.5 percent of original size [2021-11-02 23:16:43,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 85 case distinctions, treesize of input 164 treesize of output 185 [2021-11-02 23:16:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:44,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:44,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:44,879 INFO L354 Elim1Store]: treesize reduction 1158, result has 4.6 percent of original size [2021-11-02 23:16:44,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 82 case distinctions, treesize of input 168 treesize of output 173 [2021-11-02 23:16:46,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:46,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:46,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:46,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:46,282 INFO L354 Elim1Store]: treesize reduction 780, result has 6.0 percent of original size [2021-11-02 23:16:46,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 8 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 197 treesize of output 181 [2021-11-02 23:16:47,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:47,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:47,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:47,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:47,435 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.7 percent of original size [2021-11-02 23:16:47,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 7 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 80 case distinctions, treesize of input 190 treesize of output 193 [2021-11-02 23:16:48,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:48,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:48,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:48,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:49,190 INFO L354 Elim1Store]: treesize reduction 1347, result has 8.0 percent of original size [2021-11-02 23:16:49,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 7 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 189 treesize of output 205 [2021-11-02 23:16:50,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:50,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:50,547 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:50,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:50,989 INFO L354 Elim1Store]: treesize reduction 1612, result has 7.4 percent of original size [2021-11-02 23:16:50,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 7 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 107 case distinctions, treesize of input 175 treesize of output 216 [2021-11-02 23:16:52,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:52,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:52,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:52,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:53,014 INFO L354 Elim1Store]: treesize reduction 1724, result has 5.7 percent of original size [2021-11-02 23:16:53,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 13 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 116 case distinctions, treesize of input 187 treesize of output 231 [2021-11-02 23:16:56,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:56,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:56,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:56,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:56,516 INFO L354 Elim1Store]: treesize reduction 1895, result has 3.6 percent of original size [2021-11-02 23:16:56,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 142 case distinctions, treesize of input 216 treesize of output 248 [2021-11-02 23:16:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:57,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:57,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:57,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:57,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:58,367 INFO L354 Elim1Store]: treesize reduction 1919, result has 3.6 percent of original size [2021-11-02 23:16:58,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 142 case distinctions, treesize of input 232 treesize of output 253 [2021-11-02 23:16:59,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:59,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:59,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:16:59,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:16:59,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:00,448 INFO L354 Elim1Store]: treesize reduction 1943, result has 3.5 percent of original size [2021-11-02 23:17:00,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 17 new quantified variables, introduced 142 case distinctions, treesize of input 251 treesize of output 259 [2021-11-02 23:17:01,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:01,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:01,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:01,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:02,459 INFO L354 Elim1Store]: treesize reduction 1863, result has 3.7 percent of original size [2021-11-02 23:17:02,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 7 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 130 case distinctions, treesize of input 227 treesize of output 247 [2021-11-02 23:17:03,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:03,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:03,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:03,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:03,903 INFO L354 Elim1Store]: treesize reduction 2126, result has 3.2 percent of original size [2021-11-02 23:17:03,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 7 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 146 case distinctions, treesize of input 216 treesize of output 255 [2021-11-02 23:17:05,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:05,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:05,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:05,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:06,042 INFO L354 Elim1Store]: treesize reduction 2422, result has 2.8 percent of original size [2021-11-02 23:17:06,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 19 select indices, 19 select index equivalence classes, 7 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 163 case distinctions, treesize of input 227 treesize of output 269 [2021-11-02 23:17:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:07,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:07,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:07,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-02 23:17:08,421 INFO L354 Elim1Store]: treesize reduction 2736, result has 2.5 percent of original size [2021-11-02 23:17:08,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 7 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 181 case distinctions, treesize of input 237 treesize of output 282 [2021-11-02 23:17:10,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-02 23:17:11,980 INFO L354 Elim1Store]: treesize reduction 3284, result has 5.3 percent of original size [2021-11-02 23:17:11,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 12 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 230 case distinctions, treesize of input 236 treesize of output 284 [2021-11-02 23:17:15,968 INFO L354 Elim1Store]: treesize reduction 2716, result has 0.5 percent of original size [2021-11-02 23:17:15,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 21 select indices, 21 select index equivalence classes, 6 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 257 treesize of output 139 [2021-11-02 23:17:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 46 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:17:16,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835854496] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:17:16,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:17:16,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 210 [2021-11-02 23:17:16,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274188193] [2021-11-02 23:17:16,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 210 states [2021-11-02 23:17:16,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:17:16,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 210 interpolants. [2021-11-02 23:17:16,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1917, Invalid=41972, Unknown=1, NotChecked=0, Total=43890 [2021-11-02 23:17:16,245 INFO L87 Difference]: Start difference. First operand 116 states and 121 transitions. Second operand has 210 states, 210 states have (on average 1.0714285714285714) internal successors, (225), 210 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)