/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/array-patterns/array22_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 10:18:05,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 10:18:05,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 10:18:06,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 10:18:06,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 10:18:06,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 10:18:06,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 10:18:06,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 10:18:06,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 10:18:06,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 10:18:06,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 10:18:06,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 10:18:06,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 10:18:06,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 10:18:06,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 10:18:06,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 10:18:06,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 10:18:06,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 10:18:06,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 10:18:06,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 10:18:06,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 10:18:06,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 10:18:06,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 10:18:06,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 10:18:06,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 10:18:06,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 10:18:06,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 10:18:06,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 10:18:06,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 10:18:06,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 10:18:06,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 10:18:06,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 10:18:06,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 10:18:06,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 10:18:06,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 10:18:06,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 10:18:06,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 10:18:06,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 10:18:06,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 10:18:06,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 10:18:06,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 10:18:06,072 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 10:18:06,079 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 10:18:06,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 10:18:06,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 10:18:06,081 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 10:18:06,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 10:18:06,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 10:18:06,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 10:18:06,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 10:18:06,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 10:18:06,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 10:18:06,082 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 10:18:06,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 10:18:06,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 10:18:06,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 10:18:06,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 10:18:06,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 10:18:06,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 10:18:06,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 10:18:06,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 10:18:06,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 10:18:06,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 10:18:06,090 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 10:18:06,090 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 10:18:06,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 10:18:06,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 10:18:06,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 10:18:06,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 10:18:06,318 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 10:18:06,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array22_pattern.c [2022-01-31 10:18:06,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2ef05f8/fed79be78de34a97a787c9219e05d40e/FLAG7d50b202d [2022-01-31 10:18:06,765 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 10:18:06,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array22_pattern.c [2022-01-31 10:18:06,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2ef05f8/fed79be78de34a97a787c9219e05d40e/FLAG7d50b202d [2022-01-31 10:18:06,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb2ef05f8/fed79be78de34a97a787c9219e05d40e [2022-01-31 10:18:06,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 10:18:06,784 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 10:18:06,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 10:18:06,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 10:18:06,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 10:18:06,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:06,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70127bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06, skipping insertion in model container [2022-01-31 10:18:06,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:06,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 10:18:06,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 10:18:06,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array22_pattern.c[1347,1360] [2022-01-31 10:18:06,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 10:18:06,960 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 10:18:06,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array22_pattern.c[1347,1360] [2022-01-31 10:18:06,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 10:18:06,987 INFO L208 MainTranslator]: Completed translation [2022-01-31 10:18:06,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06 WrapperNode [2022-01-31 10:18:06,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 10:18:06,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 10:18:06,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 10:18:06,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 10:18:06,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:06,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 10:18:07,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 10:18:07,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 10:18:07,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 10:18:07,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (1/1) ... [2022-01-31 10:18:07,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 10:18:07,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:07,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 10:18:07,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 10:18:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 10:18:07,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 10:18:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 10:18:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 10:18:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 10:18:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2022-01-31 10:18:07,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 10:18:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 10:18:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 10:18:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 10:18:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 10:18:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 10:18:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 10:18:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 10:18:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 10:18:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 10:18:07,127 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 10:18:07,130 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 10:18:07,355 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 10:18:07,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 10:18:07,361 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-31 10:18:07,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:18:07 BoogieIcfgContainer [2022-01-31 10:18:07,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 10:18:07,363 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 10:18:07,363 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 10:18:07,377 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 10:18:07,380 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:18:07" (1/1) ... [2022-01-31 10:18:07,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 10:18:07 BasicIcfg [2022-01-31 10:18:07,415 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 10:18:07,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 10:18:07,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 10:18:07,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 10:18:07,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:18:06" (1/4) ... [2022-01-31 10:18:07,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cec2181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:18:07, skipping insertion in model container [2022-01-31 10:18:07,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:18:06" (2/4) ... [2022-01-31 10:18:07,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cec2181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:18:07, skipping insertion in model container [2022-01-31 10:18:07,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:18:07" (3/4) ... [2022-01-31 10:18:07,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cec2181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:18:07, skipping insertion in model container [2022-01-31 10:18:07,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 10:18:07" (4/4) ... [2022-01-31 10:18:07,421 INFO L111 eAbstractionObserver]: Analyzing ICFG array22_pattern.cJordan [2022-01-31 10:18:07,442 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 10:18:07,442 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 10:18:07,505 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 10:18:07,525 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 10:18:07,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 10:18:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 34 states have (on average 1.5) internal successors, (51), 35 states have internal predecessors, (51), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 10:18:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 10:18:07,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:07,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:18:07,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -250346427, now seen corresponding path program 1 times [2022-01-31 10:18:07,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:07,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267233093] [2022-01-31 10:18:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:07,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 10:18:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 10:18:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:18:07,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:18:07,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267233093] [2022-01-31 10:18:07,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267233093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:18:07,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:18:07,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 10:18:07,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105365489] [2022-01-31 10:18:07,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:18:07,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 10:18:07,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:18:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 10:18:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 10:18:07,827 INFO L87 Difference]: Start difference. First operand has 49 states, 34 states have (on average 1.5) internal successors, (51), 35 states have internal predecessors, (51), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 10:18:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:18:07,930 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-01-31 10:18:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 10:18:07,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-01-31 10:18:07,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:18:07,939 INFO L225 Difference]: With dead ends: 49 [2022-01-31 10:18:07,940 INFO L226 Difference]: Without dead ends: 42 [2022-01-31 10:18:07,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 10:18:07,946 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:18:07,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 61 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:18:07,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-31 10:18:07,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-01-31 10:18:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 8 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:18:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2022-01-31 10:18:07,982 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 20 [2022-01-31 10:18:07,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:18:07,983 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2022-01-31 10:18:07,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 10:18:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2022-01-31 10:18:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-31 10:18:07,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:07,987 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-01-31 10:18:07,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 10:18:07,988 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:07,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1292301639, now seen corresponding path program 1 times [2022-01-31 10:18:07,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:07,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506986451] [2022-01-31 10:18:07,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:07,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:08,029 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:18:08,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821473851] [2022-01-31 10:18:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:08,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:08,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:08,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:18:08,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 10:18:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:08,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-31 10:18:08,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:18:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-31 10:18:08,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:18:08,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:18:08,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506986451] [2022-01-31 10:18:08,286 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:18:08,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821473851] [2022-01-31 10:18:08,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821473851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:18:08,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:18:08,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 10:18:08,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278926661] [2022-01-31 10:18:08,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:18:08,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 10:18:08,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:18:08,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 10:18:08,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 10:18:08,289 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:18:08,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:18:08,310 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2022-01-31 10:18:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 10:18:08,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2022-01-31 10:18:08,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:18:08,312 INFO L225 Difference]: With dead ends: 48 [2022-01-31 10:18:08,312 INFO L226 Difference]: Without dead ends: 45 [2022-01-31 10:18:08,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 10:18:08,314 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 12 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:18:08,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 175 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:18:08,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-31 10:18:08,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-01-31 10:18:08,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:18:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-01-31 10:18:08,327 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 47 [2022-01-31 10:18:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:18:08,329 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-01-31 10:18:08,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:18:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-01-31 10:18:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-31 10:18:08,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:08,332 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:18:08,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 10:18:08,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:08,557 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:08,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:08,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1420970935, now seen corresponding path program 1 times [2022-01-31 10:18:08,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:08,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442402072] [2022-01-31 10:18:08,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:08,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:08,575 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:18:08,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925359636] [2022-01-31 10:18:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:08,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:08,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:08,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:18:08,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 10:18:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:08,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-31 10:18:08,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:18:08,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-31 10:18:08,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:18:08,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:18:08,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442402072] [2022-01-31 10:18:08,806 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:18:08,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925359636] [2022-01-31 10:18:08,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925359636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:18:08,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:18:08,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 10:18:08,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648016775] [2022-01-31 10:18:08,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:18:08,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 10:18:08,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:18:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 10:18:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-31 10:18:08,809 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:18:08,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:18:08,898 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2022-01-31 10:18:08,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 10:18:08,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2022-01-31 10:18:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:18:08,902 INFO L225 Difference]: With dead ends: 77 [2022-01-31 10:18:08,902 INFO L226 Difference]: Without dead ends: 55 [2022-01-31 10:18:08,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-31 10:18:08,905 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 28 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:18:08,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 128 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:18:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-01-31 10:18:08,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2022-01-31 10:18:08,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 34 states have internal predecessors, (43), 8 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:18:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2022-01-31 10:18:08,912 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 52 [2022-01-31 10:18:08,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:18:08,913 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2022-01-31 10:18:08,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:18:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2022-01-31 10:18:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-31 10:18:08,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:08,914 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:18:08,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 10:18:09,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-31 10:18:09,137 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1455908948, now seen corresponding path program 1 times [2022-01-31 10:18:09,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:09,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025752061] [2022-01-31 10:18:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:09,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:09,151 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:18:09,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344802016] [2022-01-31 10:18:09,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:09,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:09,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:09,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:18:09,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 10:18:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:09,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-31 10:18:09,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:18:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-31 10:18:09,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:18:09,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:18:09,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025752061] [2022-01-31 10:18:09,336 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:18:09,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344802016] [2022-01-31 10:18:09,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344802016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:18:09,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:18:09,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 10:18:09,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557467618] [2022-01-31 10:18:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:18:09,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 10:18:09,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:18:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 10:18:09,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:18:09,338 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:18:09,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:18:09,384 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-01-31 10:18:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 10:18:09,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2022-01-31 10:18:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:18:09,385 INFO L225 Difference]: With dead ends: 49 [2022-01-31 10:18:09,385 INFO L226 Difference]: Without dead ends: 49 [2022-01-31 10:18:09,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 10:18:09,386 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 25 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:18:09,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 96 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:18:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-31 10:18:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2022-01-31 10:18:09,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 8 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:18:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2022-01-31 10:18:09,391 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 55 [2022-01-31 10:18:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:18:09,392 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2022-01-31 10:18:09,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:18:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2022-01-31 10:18:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-31 10:18:09,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:09,393 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:18:09,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 10:18:09,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:09,600 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash -229737447, now seen corresponding path program 1 times [2022-01-31 10:18:09,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:09,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287881149] [2022-01-31 10:18:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:09,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:09,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:18:09,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079837313] [2022-01-31 10:18:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:09,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:09,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:09,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:18:09,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 10:18:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:18:09,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-31 10:18:09,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:18:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-31 10:18:09,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:18:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-31 10:18:10,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:18:10,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287881149] [2022-01-31 10:18:10,089 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:18:10,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079837313] [2022-01-31 10:18:10,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079837313] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:18:10,090 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:18:10,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-01-31 10:18:10,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826827246] [2022-01-31 10:18:10,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:18:10,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-31 10:18:10,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:18:10,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-31 10:18:10,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-01-31 10:18:10,091 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-01-31 10:18:10,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:18:10,256 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-01-31 10:18:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-31 10:18:10,256 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2022-01-31 10:18:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:18:10,257 INFO L225 Difference]: With dead ends: 56 [2022-01-31 10:18:10,257 INFO L226 Difference]: Without dead ends: 56 [2022-01-31 10:18:10,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2022-01-31 10:18:10,258 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 67 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:18:10,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 112 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:18:10,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-01-31 10:18:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2022-01-31 10:18:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:18:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-01-31 10:18:10,264 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 57 [2022-01-31 10:18:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:18:10,264 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-01-31 10:18:10,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-01-31 10:18:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-01-31 10:18:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-31 10:18:10,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:10,266 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:18:10,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-31 10:18:10,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:10,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:10,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1976393112, now seen corresponding path program 2 times [2022-01-31 10:18:10,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:10,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808520041] [2022-01-31 10:18:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:10,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:10,487 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:18:10,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483794463] [2022-01-31 10:18:10,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 10:18:10,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:10,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:10,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:18:10,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 10:18:10,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 10:18:10,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:18:10,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-31 10:18:10,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:18:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-31 10:18:10,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:18:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-31 10:18:10,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:18:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808520041] [2022-01-31 10:18:10,851 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:18:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483794463] [2022-01-31 10:18:10,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483794463] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:18:10,852 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:18:10,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-01-31 10:18:10,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960765517] [2022-01-31 10:18:10,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:18:10,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-31 10:18:10,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:18:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-31 10:18:10,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-31 10:18:10,853 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:18:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:18:11,004 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2022-01-31 10:18:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-31 10:18:11,005 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 61 [2022-01-31 10:18:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:18:11,006 INFO L225 Difference]: With dead ends: 80 [2022-01-31 10:18:11,006 INFO L226 Difference]: Without dead ends: 80 [2022-01-31 10:18:11,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-01-31 10:18:11,007 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 46 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:18:11,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 190 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:18:11,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-01-31 10:18:11,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 68. [2022-01-31 10:18:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 55 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:18:11,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2022-01-31 10:18:11,012 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 61 [2022-01-31 10:18:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:18:11,012 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2022-01-31 10:18:11,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:18:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2022-01-31 10:18:11,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:18:11,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:18:11,014 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:18:11,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 10:18:11,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:11,214 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:18:11,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:18:11,215 INFO L85 PathProgramCache]: Analyzing trace with hash -310881895, now seen corresponding path program 3 times [2022-01-31 10:18:11,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:18:11,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413147087] [2022-01-31 10:18:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:18:11,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:18:11,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:18:11,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918324252] [2022-01-31 10:18:11,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-31 10:18:11,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:18:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:18:11,230 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:18:11,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 10:18:13,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-01-31 10:18:13,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:18:13,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 100 conjunts are in the unsatisfiable core [2022-01-31 10:18:13,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:18:13,907 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-01-31 10:18:13,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-01-31 10:18:13,921 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-01-31 10:18:14,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2022-01-31 10:18:14,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:18:14,030 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 86 [2022-01-31 10:18:14,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 19 [2022-01-31 10:18:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,081 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 24 [2022-01-31 10:18:14,284 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 89 [2022-01-31 10:18:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,326 INFO L353 Elim1Store]: treesize reduction 290, result has 18.8 percent of original size [2022-01-31 10:18:14,327 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 88 treesize of output 131 [2022-01-31 10:18:14,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 10 [2022-01-31 10:18:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,392 INFO L353 Elim1Store]: treesize reduction 65, result has 1.5 percent of original size [2022-01-31 10:18:14,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 10 [2022-01-31 10:18:14,622 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 172 [2022-01-31 10:18:14,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,645 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 229 [2022-01-31 10:18:14,662 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:14,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:14,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 84 [2022-01-31 10:18:16,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 101 [2022-01-31 10:18:16,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:16,758 INFO L353 Elim1Store]: treesize reduction 198, result has 44.8 percent of original size [2022-01-31 10:18:16,758 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 264 [2022-01-31 10:18:16,981 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:17,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:17,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:17,284 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 10:18:17,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 309 treesize of output 287 [2022-01-31 10:18:20,236 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:20,291 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:20,418 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:23,207 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:23,252 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:23,346 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:28,047 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:28,090 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:28,194 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:33,006 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:33,052 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:33,163 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:38,179 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:38,223 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:38,355 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:43,643 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:43,704 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:43,818 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:18:47,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 356 treesize of output 329 [2022-01-31 10:18:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:47,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:48,127 INFO L353 Elim1Store]: treesize reduction 325, result has 38.4 percent of original size [2022-01-31 10:18:48,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 23 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 332 treesize of output 637 [2022-01-31 10:18:48,176 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:48,596 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:48,655 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:48,854 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:48,888 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:48,912 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:49,271 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:49,341 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:18:59,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:18:59,726 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 645 treesize of output 581 [2022-01-31 10:19:00,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,332 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 10:19:00,332 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 662 treesize of output 625 [2022-01-31 10:19:00,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:00,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 691 treesize of output 500 [2022-01-31 10:19:24,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:19:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:19:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:19:24,268 INFO L353 Elim1Store]: treesize reduction 67, result has 65.6 percent of original size [2022-01-31 10:19:24,268 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 329 treesize of output 213 [2022-01-31 10:19:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 52 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 10:19:25,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:09,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:09,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413147087] [2022-01-31 10:20:09,262 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:09,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918324252] [2022-01-31 10:20:09,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918324252] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 10:20:09,262 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-01-31 10:20:09,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2022-01-31 10:20:09,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132370118] [2022-01-31 10:20:09,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:09,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-31 10:20:09,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:09,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-31 10:20:09,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=3179, Unknown=11, NotChecked=0, Total=3660 [2022-01-31 10:20:09,265 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 42 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 7 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:20:10,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:10,788 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2022-01-31 10:20:10,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-31 10:20:10,789 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 7 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2022-01-31 10:20:10,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:10,791 INFO L225 Difference]: With dead ends: 128 [2022-01-31 10:20:10,791 INFO L226 Difference]: Without dead ends: 125 [2022-01-31 10:20:10,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 44 SyntacticMatches, 9 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2087 ImplicationChecksByTransitivity, 47.7s TimeCoverageRelationStatistics Valid=539, Invalid=3740, Unknown=11, NotChecked=0, Total=4290 [2022-01-31 10:20:10,794 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 399 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:10,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 534 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 399 Unchecked, 0.2s Time] [2022-01-31 10:20:10,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-01-31 10:20:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2022-01-31 10:20:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.2061855670103092) internal successors, (117), 97 states have internal predecessors, (117), 12 states have call successors, (12), 9 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-01-31 10:20:10,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 141 transitions. [2022-01-31 10:20:10,803 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 141 transitions. Word has length 75 [2022-01-31 10:20:10,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:10,803 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 141 transitions. [2022-01-31 10:20:10,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 1.45) internal successors, (58), 40 states have internal predecessors, (58), 7 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:20:10,804 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 141 transitions. [2022-01-31 10:20:10,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:10,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:10,805 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:10,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:11,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:11,014 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:11,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:11,014 INFO L85 PathProgramCache]: Analyzing trace with hash 933882586, now seen corresponding path program 1 times [2022-01-31 10:20:11,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:11,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720906791] [2022-01-31 10:20:11,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:11,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:11,025 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:11,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249041890] [2022-01-31 10:20:11,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:11,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:11,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:11,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:11,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-31 10:20:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:11,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 10:20:11,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-31 10:20:11,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:20:11,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:11,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720906791] [2022-01-31 10:20:11,188 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:11,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249041890] [2022-01-31 10:20:11,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249041890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:20:11,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:20:11,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 10:20:11,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248390456] [2022-01-31 10:20:11,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:20:11,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 10:20:11,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 10:20:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:11,189 INFO L87 Difference]: Start difference. First operand 117 states and 141 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-01-31 10:20:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:11,204 INFO L93 Difference]: Finished difference Result 122 states and 146 transitions. [2022-01-31 10:20:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 10:20:11,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 75 [2022-01-31 10:20:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:11,206 INFO L225 Difference]: With dead ends: 122 [2022-01-31 10:20:11,206 INFO L226 Difference]: Without dead ends: 122 [2022-01-31 10:20:11,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:11,206 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:11,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 146 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:20:11,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-01-31 10:20:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-01-31 10:20:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.19) internal successors, (119), 100 states have internal predecessors, (119), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2022-01-31 10:20:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 145 transitions. [2022-01-31 10:20:11,214 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 145 transitions. Word has length 75 [2022-01-31 10:20:11,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:11,214 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 145 transitions. [2022-01-31 10:20:11,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-01-31 10:20:11,215 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 145 transitions. [2022-01-31 10:20:11,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:11,216 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:11,216 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:11,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:11,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:11,431 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:11,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:11,432 INFO L85 PathProgramCache]: Analyzing trace with hash 650732122, now seen corresponding path program 1 times [2022-01-31 10:20:11,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:11,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903865544] [2022-01-31 10:20:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:11,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:11,447 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:11,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60313441] [2022-01-31 10:20:11,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:11,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:11,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:11,448 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:11,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-31 10:20:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:11,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-31 10:20:11,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-31 10:20:11,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:20:11,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:11,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903865544] [2022-01-31 10:20:11,601 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:11,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60313441] [2022-01-31 10:20:11,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60313441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:20:11,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:20:11,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 10:20:11,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901280107] [2022-01-31 10:20:11,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:20:11,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 10:20:11,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:11,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 10:20:11,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:11,602 INFO L87 Difference]: Start difference. First operand 121 states and 145 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-01-31 10:20:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:11,616 INFO L93 Difference]: Finished difference Result 122 states and 145 transitions. [2022-01-31 10:20:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 10:20:11,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 75 [2022-01-31 10:20:11,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:11,618 INFO L225 Difference]: With dead ends: 122 [2022-01-31 10:20:11,618 INFO L226 Difference]: Without dead ends: 122 [2022-01-31 10:20:11,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:11,619 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:11,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 157 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:20:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-01-31 10:20:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-01-31 10:20:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.18) internal successors, (118), 100 states have internal predecessors, (118), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14) [2022-01-31 10:20:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 144 transitions. [2022-01-31 10:20:11,631 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 144 transitions. Word has length 75 [2022-01-31 10:20:11,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:11,632 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 144 transitions. [2022-01-31 10:20:11,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-01-31 10:20:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 144 transitions. [2022-01-31 10:20:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:11,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:11,633 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:11,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:11,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-01-31 10:20:11,839 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:11,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:11,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1895496603, now seen corresponding path program 1 times [2022-01-31 10:20:11,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:11,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531370031] [2022-01-31 10:20:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:11,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:11,857 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:11,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145075691] [2022-01-31 10:20:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:11,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:11,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:11,859 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:11,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-31 10:20:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:11,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-31 10:20:11,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-31 10:20:12,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-01-31 10:20:12,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:12,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531370031] [2022-01-31 10:20:12,280 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:12,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145075691] [2022-01-31 10:20:12,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145075691] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:12,280 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:12,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-01-31 10:20:12,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261335320] [2022-01-31 10:20:12,280 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:12,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 10:20:12,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:12,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 10:20:12,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-31 10:20:12,281 INFO L87 Difference]: Start difference. First operand 121 states and 144 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:12,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:12,442 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2022-01-31 10:20:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 10:20:12,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-01-31 10:20:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:12,443 INFO L225 Difference]: With dead ends: 147 [2022-01-31 10:20:12,444 INFO L226 Difference]: Without dead ends: 147 [2022-01-31 10:20:12,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-31 10:20:12,444 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 26 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:12,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 171 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:20:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-01-31 10:20:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 127. [2022-01-31 10:20:12,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.1714285714285715) internal successors, (123), 104 states have internal predecessors, (123), 13 states have call successors, (13), 10 states have call predecessors, (13), 8 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2022-01-31 10:20:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2022-01-31 10:20:12,451 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 75 [2022-01-31 10:20:12,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:12,451 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2022-01-31 10:20:12,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:12,451 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2022-01-31 10:20:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:12,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:12,452 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:12,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:12,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-31 10:20:12,671 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:12,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 39918042, now seen corresponding path program 1 times [2022-01-31 10:20:12,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:12,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349961761] [2022-01-31 10:20:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:12,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:12,690 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:12,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090187721] [2022-01-31 10:20:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:12,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:12,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:12,696 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:12,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-31 10:20:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:12,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-31 10:20:12,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-01-31 10:20:12,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:20:12,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:12,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349961761] [2022-01-31 10:20:12,840 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:12,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090187721] [2022-01-31 10:20:12,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090187721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:20:12,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:20:12,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 10:20:12,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703943166] [2022-01-31 10:20:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:20:12,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 10:20:12,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:12,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 10:20:12,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:12,842 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:12,853 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2022-01-31 10:20:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 10:20:12,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-01-31 10:20:12,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:12,855 INFO L225 Difference]: With dead ends: 127 [2022-01-31 10:20:12,855 INFO L226 Difference]: Without dead ends: 127 [2022-01-31 10:20:12,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:12,856 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:12,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 146 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:20:12,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-01-31 10:20:12,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-01-31 10:20:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.1523809523809523) internal successors, (121), 104 states have internal predecessors, (121), 13 states have call successors, (13), 10 states have call predecessors, (13), 8 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2022-01-31 10:20:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2022-01-31 10:20:12,861 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 75 [2022-01-31 10:20:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:12,861 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2022-01-31 10:20:12,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2022-01-31 10:20:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:12,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:12,862 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:12,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:13,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-31 10:20:13,075 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:13,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:13,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1414599002, now seen corresponding path program 2 times [2022-01-31 10:20:13,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022771820] [2022-01-31 10:20:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:13,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:13,085 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:13,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058536263] [2022-01-31 10:20:13,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 10:20:13,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:13,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:13,087 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:13,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-31 10:20:13,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 10:20:13,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:20:13,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-31 10:20:13,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-01-31 10:20:13,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:20:13,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:13,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022771820] [2022-01-31 10:20:13,238 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:13,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058536263] [2022-01-31 10:20:13,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058536263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:20:13,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:20:13,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 10:20:13,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748233447] [2022-01-31 10:20:13,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:20:13,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 10:20:13,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:13,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 10:20:13,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:13,239 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:13,251 INFO L93 Difference]: Finished difference Result 127 states and 147 transitions. [2022-01-31 10:20:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 10:20:13,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-01-31 10:20:13,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:13,252 INFO L225 Difference]: With dead ends: 127 [2022-01-31 10:20:13,252 INFO L226 Difference]: Without dead ends: 127 [2022-01-31 10:20:13,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 10:20:13,252 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:13,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 157 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:20:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-01-31 10:20:13,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-01-31 10:20:13,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 104 states have internal predecessors, (120), 13 states have call successors, (13), 10 states have call predecessors, (13), 8 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2022-01-31 10:20:13,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2022-01-31 10:20:13,257 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 75 [2022-01-31 10:20:13,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:13,257 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2022-01-31 10:20:13,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:13,257 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2022-01-31 10:20:13,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:13,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:13,258 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:13,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:13,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-31 10:20:13,471 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1765398939, now seen corresponding path program 1 times [2022-01-31 10:20:13,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:13,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553353929] [2022-01-31 10:20:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:13,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:13,480 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:13,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1898724401] [2022-01-31 10:20:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:13,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:13,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:13,482 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:13,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-31 10:20:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:13,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-31 10:20:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-31 10:20:13,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-01-31 10:20:13,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:13,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553353929] [2022-01-31 10:20:13,917 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:13,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898724401] [2022-01-31 10:20:13,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898724401] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:13,918 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:13,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-01-31 10:20:13,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692919439] [2022-01-31 10:20:13,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:13,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 10:20:13,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:13,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 10:20:13,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-31 10:20:13,919 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:14,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:14,074 INFO L93 Difference]: Finished difference Result 149 states and 172 transitions. [2022-01-31 10:20:14,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 10:20:14,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-01-31 10:20:14,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:14,076 INFO L225 Difference]: With dead ends: 149 [2022-01-31 10:20:14,076 INFO L226 Difference]: Without dead ends: 149 [2022-01-31 10:20:14,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-31 10:20:14,077 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 21 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:14,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 254 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:20:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-01-31 10:20:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 129. [2022-01-31 10:20:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 107 states have (on average 1.1401869158878504) internal successors, (122), 105 states have internal predecessors, (122), 13 states have call successors, (13), 11 states have call predecessors, (13), 8 states have return successors, (13), 12 states have call predecessors, (13), 11 states have call successors, (13) [2022-01-31 10:20:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2022-01-31 10:20:14,081 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 75 [2022-01-31 10:20:14,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:14,082 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2022-01-31 10:20:14,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-01-31 10:20:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2022-01-31 10:20:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 10:20:14,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:14,083 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:14,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:14,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-31 10:20:14,288 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:14,288 INFO L85 PathProgramCache]: Analyzing trace with hash -323189859, now seen corresponding path program 1 times [2022-01-31 10:20:14,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:14,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461876310] [2022-01-31 10:20:14,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:14,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:14,297 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:14,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974714811] [2022-01-31 10:20:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:14,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:14,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:14,299 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:14,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-31 10:20:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:14,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-31 10:20:14,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-31 10:20:14,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 10:20:14,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:14,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461876310] [2022-01-31 10:20:14,876 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:14,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974714811] [2022-01-31 10:20:14,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974714811] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:14,876 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:14,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2022-01-31 10:20:14,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679603677] [2022-01-31 10:20:14,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:14,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 10:20:14,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 10:20:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-01-31 10:20:14,877 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 5 states have call successors, (12), 4 states have call predecessors, (12), 7 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2022-01-31 10:20:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:15,339 INFO L93 Difference]: Finished difference Result 215 states and 243 transitions. [2022-01-31 10:20:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 10:20:15,339 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 5 states have call successors, (12), 4 states have call predecessors, (12), 7 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 75 [2022-01-31 10:20:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:15,340 INFO L225 Difference]: With dead ends: 215 [2022-01-31 10:20:15,340 INFO L226 Difference]: Without dead ends: 213 [2022-01-31 10:20:15,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-01-31 10:20:15,341 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 109 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:15,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 325 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 10:20:15,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-01-31 10:20:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 168. [2022-01-31 10:20:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 137 states have (on average 1.1313868613138687) internal successors, (155), 136 states have internal predecessors, (155), 18 states have call successors, (18), 15 states have call predecessors, (18), 12 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2022-01-31 10:20:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 190 transitions. [2022-01-31 10:20:15,347 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 190 transitions. Word has length 75 [2022-01-31 10:20:15,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:15,347 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 190 transitions. [2022-01-31 10:20:15,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 5 states have call successors, (12), 4 states have call predecessors, (12), 7 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2022-01-31 10:20:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 190 transitions. [2022-01-31 10:20:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-31 10:20:15,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:15,349 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:15,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:15,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-31 10:20:15,572 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:15,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1955802914, now seen corresponding path program 4 times [2022-01-31 10:20:15,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:15,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654227132] [2022-01-31 10:20:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:15,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:15,598 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:15,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634578262] [2022-01-31 10:20:15,598 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-31 10:20:15,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:15,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:15,609 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:15,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-31 10:20:15,696 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-31 10:20:15,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:20:15,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-31 10:20:15,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 21 proven. 22 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-31 10:20:15,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-01-31 10:20:15,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:15,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654227132] [2022-01-31 10:20:15,951 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:15,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634578262] [2022-01-31 10:20:15,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634578262] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:15,951 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:15,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-01-31 10:20:15,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420109687] [2022-01-31 10:20:15,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:15,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-31 10:20:15,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:15,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-31 10:20:15,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-31 10:20:15,952 INFO L87 Difference]: Start difference. First operand 168 states and 190 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:20:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:16,208 INFO L93 Difference]: Finished difference Result 271 states and 302 transitions. [2022-01-31 10:20:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-31 10:20:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-01-31 10:20:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:16,209 INFO L225 Difference]: With dead ends: 271 [2022-01-31 10:20:16,209 INFO L226 Difference]: Without dead ends: 271 [2022-01-31 10:20:16,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-01-31 10:20:16,210 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 59 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:16,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 360 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 10:20:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-01-31 10:20:16,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 251. [2022-01-31 10:20:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 204 states have (on average 1.1225490196078431) internal successors, (229), 205 states have internal predecessors, (229), 27 states have call successors, (27), 22 states have call predecessors, (27), 19 states have return successors, (26), 23 states have call predecessors, (26), 25 states have call successors, (26) [2022-01-31 10:20:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 282 transitions. [2022-01-31 10:20:16,220 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 282 transitions. Word has length 77 [2022-01-31 10:20:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:16,221 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 282 transitions. [2022-01-31 10:20:16,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:20:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 282 transitions. [2022-01-31 10:20:16,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-31 10:20:16,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:16,224 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:16,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:16,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:16,431 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:16,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1220924973, now seen corresponding path program 5 times [2022-01-31 10:20:16,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:16,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744963359] [2022-01-31 10:20:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:16,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:16,441 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:16,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904632341] [2022-01-31 10:20:16,441 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-31 10:20:16,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:16,442 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:16,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-31 10:20:17,277 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-01-31 10:20:17,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:20:17,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-31 10:20:17,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 10:20:17,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 10:20:17,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:17,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744963359] [2022-01-31 10:20:17,564 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:17,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904632341] [2022-01-31 10:20:17,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904632341] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:17,564 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:17,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-01-31 10:20:17,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5744119] [2022-01-31 10:20:17,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:17,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-31 10:20:17,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:17,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-31 10:20:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-31 10:20:17,566 INFO L87 Difference]: Start difference. First operand 251 states and 282 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:20:17,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:17,745 INFO L93 Difference]: Finished difference Result 197 states and 214 transitions. [2022-01-31 10:20:17,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 10:20:17,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-01-31 10:20:17,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:17,747 INFO L225 Difference]: With dead ends: 197 [2022-01-31 10:20:17,747 INFO L226 Difference]: Without dead ends: 197 [2022-01-31 10:20:17,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-31 10:20:17,747 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 131 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:17,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 174 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:20:17,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-01-31 10:20:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 182. [2022-01-31 10:20:17,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 151 states have (on average 1.0927152317880795) internal successors, (165), 150 states have internal predecessors, (165), 18 states have call successors, (18), 15 states have call predecessors, (18), 12 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2022-01-31 10:20:17,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 200 transitions. [2022-01-31 10:20:17,753 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 200 transitions. Word has length 77 [2022-01-31 10:20:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:17,753 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 200 transitions. [2022-01-31 10:20:17,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:20:17,753 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 200 transitions. [2022-01-31 10:20:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 10:20:17,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:17,754 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:17,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:17,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-31 10:20:17,960 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:17,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2009813393, now seen corresponding path program 6 times [2022-01-31 10:20:17,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:17,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911506235] [2022-01-31 10:20:17,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:17,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:17,968 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:17,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728513544] [2022-01-31 10:20:17,968 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-31 10:20:17,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:17,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:17,969 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:17,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-31 10:20:18,481 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-01-31 10:20:18,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:20:18,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-31 10:20:18,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 21 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-31 10:20:18,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-31 10:20:18,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911506235] [2022-01-31 10:20:18,772 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728513544] [2022-01-31 10:20:18,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728513544] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:18,772 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:18,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-01-31 10:20:18,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903791319] [2022-01-31 10:20:18,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:18,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-31 10:20:18,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-31 10:20:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-31 10:20:18,773 INFO L87 Difference]: Start difference. First operand 182 states and 200 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-01-31 10:20:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:19,072 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2022-01-31 10:20:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 10:20:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 82 [2022-01-31 10:20:19,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:19,073 INFO L225 Difference]: With dead ends: 198 [2022-01-31 10:20:19,073 INFO L226 Difference]: Without dead ends: 182 [2022-01-31 10:20:19,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2022-01-31 10:20:19,074 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 96 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:19,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 336 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 10:20:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-01-31 10:20:19,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 161. [2022-01-31 10:20:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 132 states have (on average 1.0757575757575757) internal successors, (142), 130 states have internal predecessors, (142), 17 states have call successors, (17), 14 states have call predecessors, (17), 11 states have return successors, (16), 16 states have call predecessors, (16), 15 states have call successors, (16) [2022-01-31 10:20:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 175 transitions. [2022-01-31 10:20:19,079 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 175 transitions. Word has length 82 [2022-01-31 10:20:19,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:19,079 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 175 transitions. [2022-01-31 10:20:19,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-01-31 10:20:19,079 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 175 transitions. [2022-01-31 10:20:19,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 10:20:19,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:19,080 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:20:19,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:19,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-31 10:20:19,285 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:19,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:19,286 INFO L85 PathProgramCache]: Analyzing trace with hash -94021255, now seen corresponding path program 7 times [2022-01-31 10:20:19,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:19,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245224195] [2022-01-31 10:20:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:19,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:19,294 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:19,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480822701] [2022-01-31 10:20:19,294 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-31 10:20:19,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:19,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:19,295 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:19,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-31 10:20:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:19,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-31 10:20:19,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-31 10:20:19,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:20:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-01-31 10:20:19,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:20:19,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245224195] [2022-01-31 10:20:19,690 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:20:19,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480822701] [2022-01-31 10:20:19,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480822701] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:20:19,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:20:19,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-01-31 10:20:19,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717603207] [2022-01-31 10:20:19,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:20:19,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-31 10:20:19,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:20:19,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-31 10:20:19,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-01-31 10:20:19,692 INFO L87 Difference]: Start difference. First operand 161 states and 175 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:20:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:20:19,963 INFO L93 Difference]: Finished difference Result 195 states and 213 transitions. [2022-01-31 10:20:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 10:20:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2022-01-31 10:20:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:20:19,964 INFO L225 Difference]: With dead ends: 195 [2022-01-31 10:20:19,964 INFO L226 Difference]: Without dead ends: 195 [2022-01-31 10:20:19,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-01-31 10:20:19,965 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 10:20:19,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 247 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 10:20:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-01-31 10:20:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 179. [2022-01-31 10:20:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 150 states have (on average 1.08) internal successors, (162), 148 states have internal predecessors, (162), 17 states have call successors, (17), 14 states have call predecessors, (17), 11 states have return successors, (16), 16 states have call predecessors, (16), 15 states have call successors, (16) [2022-01-31 10:20:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 195 transitions. [2022-01-31 10:20:19,970 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 195 transitions. Word has length 83 [2022-01-31 10:20:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:20:19,970 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 195 transitions. [2022-01-31 10:20:19,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-01-31 10:20:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 195 transitions. [2022-01-31 10:20:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-31 10:20:19,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:20:19,971 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-31 10:20:19,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-01-31 10:20:20,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-31 10:20:20,180 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:20:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:20:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1400505540, now seen corresponding path program 1 times [2022-01-31 10:20:20,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:20:20,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580607067] [2022-01-31 10:20:20,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:20,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:20:20,188 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:20:20,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2826688] [2022-01-31 10:20:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:20:20,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:20:20,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:20:20,189 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:20:20,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-31 10:20:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:20:20,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 132 conjunts are in the unsatisfiable core [2022-01-31 10:20:20,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:20:20,777 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-01-31 10:20:20,781 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-01-31 10:20:20,796 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-01-31 10:20:20,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 69 [2022-01-31 10:20:20,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:20,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:20,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:20:20,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 90 [2022-01-31 10:20:20,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:20,928 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 22 [2022-01-31 10:20:21,129 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 68 [2022-01-31 10:20:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,137 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 89 [2022-01-31 10:20:21,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:20:21,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,183 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 19 [2022-01-31 10:20:21,298 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 69 [2022-01-31 10:20:21,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 104 [2022-01-31 10:20:21,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:21,334 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 27 [2022-01-31 10:20:22,372 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 95 [2022-01-31 10:20:22,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:22,543 INFO L353 Elim1Store]: treesize reduction 187, result has 44.2 percent of original size [2022-01-31 10:20:22,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 245 [2022-01-31 10:20:22,603 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:20:22,790 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:20:22,974 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:20:23,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:23,342 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 10:20:23,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 355 treesize of output 310 [2022-01-31 10:20:26,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 342 [2022-01-31 10:20:26,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,581 INFO L353 Elim1Store]: treesize reduction 308, result has 38.2 percent of original size [2022-01-31 10:20:26,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 23 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 345 treesize of output 578 [2022-01-31 10:20:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:26,796 INFO L353 Elim1Store]: treesize reduction 91, result has 1.1 percent of original size [2022-01-31 10:20:26,797 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 352 treesize of output 285 [2022-01-31 10:20:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:27,708 INFO L353 Elim1Store]: treesize reduction 93, result has 38.0 percent of original size [2022-01-31 10:20:27,708 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 387 treesize of output 353 [2022-01-31 10:20:28,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:28,031 INFO L353 Elim1Store]: treesize reduction 91, result has 1.1 percent of original size [2022-01-31 10:20:28,032 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 390 treesize of output 262 [2022-01-31 10:20:57,521 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 240 [2022-01-31 10:20:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:20:57,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:57,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:20:58,579 INFO L353 Elim1Store]: treesize reduction 580, result has 32.7 percent of original size [2022-01-31 10:20:58,579 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 239 treesize of output 426 [2022-01-31 10:21:01,366 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:21:02,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:21:04,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:21:04,470 INFO L353 Elim1Store]: treesize reduction 78, result has 61.6 percent of original size [2022-01-31 10:21:04,470 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 665 treesize of output 634 [2022-01-31 10:21:14,569 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:30,369 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:30,761 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:30,978 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:33,448 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:34,390 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:34,722 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:34,859 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:35,116 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:47,401 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:47,830 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:48,081 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:51,108 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:52,188 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:52,576 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:52,699 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:52,984 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:56,339 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:56,655 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:56,774 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:57,001 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:57,734 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:57,911 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:58,059 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:21:58,201 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:00,246 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:01,408 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:04,035 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:04,483 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:04,734 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:06,291 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:06,629 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:07,070 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:09,026 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:26,586 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:27,019 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:27,222 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:30,903 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:32,239 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:32,644 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:32,769 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:33,018 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:37,688 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:38,204 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:38,399 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:38,716 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:39,812 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:40,114 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:40,288 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:40,446 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:43,044 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:44,734 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:49,387 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:50,018 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:50,249 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:51,803 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:52,160 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:52,665 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:22:55,230 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:15,949 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:16,729 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:17,115 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:22,872 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:24,713 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:25,306 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:25,540 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:25,899 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:32,194 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:32,725 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:32,912 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:33,230 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:34,420 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:34,827 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:35,010 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:35,269 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:38,851 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:41,560 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:46,598 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:47,395 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:47,783 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:50,433 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:51,078 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:51,776 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:23:56,109 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:24,017 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:24,869 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:25,352 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:32,275 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:34,493 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:35,349 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:35,691 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:36,162 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:43,009 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:43,751 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:44,006 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:44,429 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:45,781 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:46,236 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:46,534 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:46,832 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:50,572 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:24:53,746 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:00,801 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:01,765 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:02,270 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:05,244 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:05,982 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:06,772 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:11,131 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:19,388 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:22,460 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:22,995 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:23,196 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:23,597 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:26,545 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:27,654 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:28,412 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:25:33,800 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:00,757 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:01,477 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:08,609 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:13,312 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:18,445 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:19,014 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:19,224 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:19,713 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:21,150 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:21,432 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:21,770 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:22,216 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:28,084 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:29,378 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:30,264 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:36,971 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:40,765 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:41,401 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:45,962 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:26:59,164 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:02,380 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:08,925 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 979 treesize of output 892 [2022-01-31 10:27:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:08,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:08,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:08,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:08,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:08,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:08,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:09,059 INFO L244 Elim1Store]: Index analysis took 101 ms [2022-01-31 10:27:10,444 INFO L353 Elim1Store]: treesize reduction 526, result has 26.5 percent of original size [2022-01-31 10:27:10,444 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 895 treesize of output 987 [2022-01-31 10:27:10,834 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:11,275 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:11,793 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:11,873 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:13,031 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:13,197 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:13,742 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:27:14,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:14,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:14,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:14,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:14,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:14,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:15,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:15,003 INFO L244 Elim1Store]: Index analysis took 214 ms [2022-01-31 10:27:15,157 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 10:27:15,158 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 145 [2022-01-31 10:27:23,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:23,982 INFO L353 Elim1Store]: treesize reduction 107, result has 0.9 percent of original size [2022-01-31 10:27:23,983 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 1183 treesize of output 1004 [2022-01-31 10:27:27,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:27:27,788 INFO L353 Elim1Store]: treesize reduction 25, result has 76.9 percent of original size [2022-01-31 10:27:27,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 1098 treesize of output 871 [2022-01-31 10:27:40,519 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:41,158 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:41,368 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:41,477 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:42,620 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:42,998 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:49,057 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:49,739 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:49,949 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:50,063 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:51,193 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:51,591 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:53,684 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:53,847 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:54,146 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:56,397 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:57,438 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:27:57,556 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:06,389 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:07,058 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:07,271 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:07,383 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:08,503 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:08,858 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:10,735 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:10,933 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:11,202 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:13,204 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:14,201 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:14,320 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:21,378 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:22,091 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:22,301 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:22,415 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:23,708 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:24,112 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:26,588 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:26,757 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:27,021 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:28,970 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:29,923 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:30,027 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:37,262 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:37,899 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:38,110 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:38,217 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:39,400 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:39,771 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:41,871 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:42,029 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:42,311 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:44,400 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:45,430 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:45,543 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:53,015 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:53,617 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:53,828 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:53,939 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:55,060 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:55,436 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:57,477 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:57,643 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:57,874 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:28:59,950 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:01,116 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:01,236 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:09,330 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:10,020 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:10,236 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:10,351 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:11,504 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:11,877 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:14,048 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:14,223 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:14,445 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:16,772 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:17,930 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:18,060 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:26,429 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:27,227 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:27,360 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:28,594 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:30,952 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:31,075 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:33,847 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:33,963 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:41,573 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:42,149 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:42,268 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:43,367 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:45,372 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:45,501 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:47,606 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:47,725 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:55,801 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:56,596 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:56,731 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:29:58,100 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:00,880 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:01,038 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:03,862 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:03,985 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:12,381 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:13,096 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:13,321 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:13,444 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:14,692 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:15,109 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:17,373 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:17,577 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:17,808 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:20,033 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:21,137 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:21,275 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:29,708 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:30,375 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:30,578 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:30,707 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:31,952 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:32,350 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:34,632 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:34,819 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:35,095 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:37,630 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:38,953 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:39,096 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:49,648 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:50,517 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:50,831 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:50,987 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:52,561 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:52,981 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:55,688 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:55,922 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:56,309 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:30:59,034 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:00,782 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:00,929 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:12,586 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:12,941 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:13,093 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:14,045 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:14,261 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:14,662 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:20,197 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:21,555 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:21,712 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:23,132 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:23,659 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:24,218 WARN L907 QuantifierPusher]: no eliminatee completely removed, nonetheless the elimination was considered successful [2022-01-31 10:31:29,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:31:29,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:31:29,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:31:29,430 INFO L353 Elim1Store]: treesize reduction 114, result has 47.0 percent of original size [2022-01-31 10:31:29,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 14 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 902 treesize of output 642 [2022-01-31 10:31:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 108 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-31 10:31:34,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:32:07,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:32:07,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580607067] [2022-01-31 10:32:07,288 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:32:07,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2826688] [2022-01-31 10:32:07,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2826688] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 10:32:07,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-01-31 10:32:07,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2022-01-31 10:32:07,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065805271] [2022-01-31 10:32:07,288 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-01-31 10:32:07,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-01-31 10:32:07,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:32:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-01-31 10:32:07,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=5894, Unknown=5, NotChecked=0, Total=6480 [2022-01-31 10:32:07,291 INFO L87 Difference]: Start difference. First operand 179 states and 195 transitions. Second operand has 59 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 54 states have internal predecessors, (81), 9 states have call successors, (12), 7 states have call predecessors, (12), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-01-31 10:32:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:32:09,745 INFO L93 Difference]: Finished difference Result 225 states and 243 transitions. [2022-01-31 10:32:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-31 10:32:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 54 states have internal predecessors, (81), 9 states have call successors, (12), 7 states have call predecessors, (12), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 103 [2022-01-31 10:32:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:32:09,747 INFO L225 Difference]: With dead ends: 225 [2022-01-31 10:32:09,747 INFO L226 Difference]: Without dead ends: 206 [2022-01-31 10:32:09,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 56 SyntacticMatches, 10 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3640 ImplicationChecksByTransitivity, 67.7s TimeCoverageRelationStatistics Valid=651, Invalid=6826, Unknown=5, NotChecked=0, Total=7482 [2022-01-31 10:32:09,749 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 677 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 10:32:09,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 945 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 0 Unknown, 677 Unchecked, 0.8s Time] [2022-01-31 10:32:09,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-01-31 10:32:09,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2022-01-31 10:32:09,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 167 states have (on average 1.0718562874251496) internal successors, (179), 165 states have internal predecessors, (179), 21 states have call successors, (21), 17 states have call predecessors, (21), 14 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-01-31 10:32:09,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 220 transitions. [2022-01-31 10:32:09,754 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 220 transitions. Word has length 103 [2022-01-31 10:32:09,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:32:09,754 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 220 transitions. [2022-01-31 10:32:09,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 54 states have internal predecessors, (81), 9 states have call successors, (12), 7 states have call predecessors, (12), 10 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2022-01-31 10:32:09,755 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 220 transitions. [2022-01-31 10:32:09,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-31 10:32:09,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:32:09,756 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-01-31 10:32:09,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-31 10:32:09,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:32:09,963 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:32:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:32:09,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1168288745, now seen corresponding path program 8 times [2022-01-31 10:32:09,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:32:09,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701565232] [2022-01-31 10:32:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:32:09,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:32:09,971 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:32:09,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174844175] [2022-01-31 10:32:09,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 10:32:09,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:32:09,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:32:09,973 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:32:09,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-31 10:32:10,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 10:32:10,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:32:11,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 148 conjunts are in the unsatisfiable core [2022-01-31 10:32:11,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:32:11,086 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2022-01-31 10:32:11,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-01-31 10:32:11,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-01-31 10:32:11,190 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 71 [2022-01-31 10:32:11,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:32:11,195 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 94 [2022-01-31 10:32:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,212 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 19 [2022-01-31 10:32:11,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,230 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 24 [2022-01-31 10:32:11,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 90 [2022-01-31 10:32:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:32:11,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 135 [2022-01-31 10:32:11,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,374 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 26 [2022-01-31 10:32:11,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 75 [2022-01-31 10:32:11,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 106 [2022-01-31 10:32:11,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,684 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 26 [2022-01-31 10:32:11,847 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 92 [2022-01-31 10:32:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 143 [2022-01-31 10:32:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:11,890 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 39 [2022-01-31 10:32:12,185 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 98 [2022-01-31 10:32:12,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,203 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 162 [2022-01-31 10:32:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,247 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 56 [2022-01-31 10:32:12,849 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 122 [2022-01-31 10:32:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:12,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 209 [2022-01-31 10:32:12,892 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:32:13,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:32:13,032 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 91