/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:16:23,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:16:23,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:16:23,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:16:23,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:16:23,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:16:23,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:16:23,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:16:23,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:16:23,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:16:23,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:16:23,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:16:23,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:16:23,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:16:23,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:16:23,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:16:23,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:16:23,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:16:23,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:16:23,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:16:23,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:16:23,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:16:23,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:16:23,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:16:23,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:16:23,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:16:23,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:16:23,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:16:23,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:16:23,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:16:23,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:16:23,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:16:23,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:16:23,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:16:23,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:16:23,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:16:23,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:16:23,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:16:23,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:16:23,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:16:23,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:16:23,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:16:23,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:16:23,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:16:23,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:16:23,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:16:23,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:16:23,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:16:23,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:16:23,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:16:23,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:16:23,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:16:23,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:16:23,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:16:23,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:16:23,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:16:23,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:16:23,205 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:16:23,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:16:23,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:16:23,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:16:23,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:16:23,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:16:23,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:16:23,206 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:16:23,207 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:16:23,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:16:23,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:16:23,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:16:23,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:16:23,639 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:16:23,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2021-02-24 04:16:23,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0153d04/f08ffbe8318a4c20878cee1a21e67e2c/FLAGe965a226d [2021-02-24 04:16:24,359 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:16:24,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2021-02-24 04:16:24,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0153d04/f08ffbe8318a4c20878cee1a21e67e2c/FLAGe965a226d [2021-02-24 04:16:24,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f0153d04/f08ffbe8318a4c20878cee1a21e67e2c [2021-02-24 04:16:24,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:16:24,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:16:24,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:16:24,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:16:24,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:16:24,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:16:24" (1/1) ... [2021-02-24 04:16:24,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf16a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:24, skipping insertion in model container [2021-02-24 04:16:24,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:16:24" (1/1) ... [2021-02-24 04:16:24,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:16:24,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:16:25,000 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c[502,515] [2021-02-24 04:16:25,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:16:25,051 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:16:25,068 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c[502,515] [2021-02-24 04:16:25,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:16:25,111 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:16:25,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25 WrapperNode [2021-02-24 04:16:25,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:16:25,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:16:25,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:16:25,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:16:25,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... [2021-02-24 04:16:25,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:16:25,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:16:25,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:16:25,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:16:25,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:16:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:16:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:16:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:16:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:16:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:16:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-02-24 04:16:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:16:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-02-24 04:16:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:16:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:16:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:16:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:16:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:16:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:16:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:16:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:16:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:16:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-02-24 04:16:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:16:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:16:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:16:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-02-24 04:16:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:16:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:16:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:16:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:16:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:16:26,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:16:26,102 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:16:26,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:16:26 BoogieIcfgContainer [2021-02-24 04:16:26,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:16:26,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:16:26,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:16:26,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:16:26,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:16:24" (1/3) ... [2021-02-24 04:16:26,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7a5db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:16:26, skipping insertion in model container [2021-02-24 04:16:26,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:16:25" (2/3) ... [2021-02-24 04:16:26,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7a5db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:16:26, skipping insertion in model container [2021-02-24 04:16:26,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:16:26" (3/3) ... [2021-02-24 04:16:26,115 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c [2021-02-24 04:16:26,124 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:16:26,131 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:16:26,159 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:16:26,191 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:16:26,191 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:16:26,192 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:16:26,192 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:16:26,192 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:16:26,192 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:16:26,192 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:16:26,193 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:16:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2021-02-24 04:16:26,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-24 04:16:26,231 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:26,233 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 04:16:26,234 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:26,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:26,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1226469690, now seen corresponding path program 1 times [2021-02-24 04:16:26,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:26,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222606027] [2021-02-24 04:16:26,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:26,347 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:26,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:26,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:26,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:26,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:26,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:26,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:26,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:26,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:26,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:26,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:26,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:26,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:26,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:26,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:26,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:26,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:26,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:16:26,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222606027] [2021-02-24 04:16:26,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:26,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:16:26,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498222119] [2021-02-24 04:16:26,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:16:26,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:26,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:16:26,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:16:26,883 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 10 states. [2021-02-24 04:16:28,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:28,428 INFO L93 Difference]: Finished difference Result 227 states and 263 transitions. [2021-02-24 04:16:28,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:16:28,430 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2021-02-24 04:16:28,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:28,450 INFO L225 Difference]: With dead ends: 227 [2021-02-24 04:16:28,450 INFO L226 Difference]: Without dead ends: 143 [2021-02-24 04:16:28,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-02-24 04:16:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-02-24 04:16:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 127. [2021-02-24 04:16:28,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2021-02-24 04:16:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 137 transitions. [2021-02-24 04:16:28,547 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 137 transitions. Word has length 45 [2021-02-24 04:16:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:28,548 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 137 transitions. [2021-02-24 04:16:28,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:16:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 137 transitions. [2021-02-24 04:16:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-24 04:16:28,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:28,553 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:28,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:16:28,553 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:28,555 INFO L82 PathProgramCache]: Analyzing trace with hash 41918952, now seen corresponding path program 1 times [2021-02-24 04:16:28,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:28,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19553710] [2021-02-24 04:16:28,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:28,560 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:28,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:28,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:28,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:16:28,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:16:28,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:16:28,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:16:28,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:28,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:28,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:28,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:28,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:28,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:28,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:28,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:28,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:28,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:28,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:28,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:28,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:28,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-24 04:16:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:29,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:29,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-24 04:16:29,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19553710] [2021-02-24 04:16:29,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:29,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:16:29,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898612523] [2021-02-24 04:16:29,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:16:29,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:29,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:16:29,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:16:29,055 INFO L87 Difference]: Start difference. First operand 127 states and 137 transitions. Second operand 14 states. [2021-02-24 04:16:30,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:30,389 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2021-02-24 04:16:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 04:16:30,389 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2021-02-24 04:16:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:30,392 INFO L225 Difference]: With dead ends: 133 [2021-02-24 04:16:30,392 INFO L226 Difference]: Without dead ends: 113 [2021-02-24 04:16:30,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-02-24 04:16:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-02-24 04:16:30,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-02-24 04:16:30,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-02-24 04:16:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2021-02-24 04:16:30,438 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 57 [2021-02-24 04:16:30,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:30,439 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2021-02-24 04:16:30,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:16:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2021-02-24 04:16:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-24 04:16:30,442 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:30,442 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:30,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:16:30,443 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:30,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:30,444 INFO L82 PathProgramCache]: Analyzing trace with hash 411171829, now seen corresponding path program 1 times [2021-02-24 04:16:30,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:30,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714531008] [2021-02-24 04:16:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:30,448 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:30,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:30,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:30,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:30,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:30,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-24 04:16:30,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714531008] [2021-02-24 04:16:30,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:30,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-24 04:16:30,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844350392] [2021-02-24 04:16:30,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-24 04:16:30,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:30,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-24 04:16:30,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:16:30,864 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand 15 states. [2021-02-24 04:16:32,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:32,819 INFO L93 Difference]: Finished difference Result 184 states and 199 transitions. [2021-02-24 04:16:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 04:16:32,820 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 72 [2021-02-24 04:16:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:32,823 INFO L225 Difference]: With dead ends: 184 [2021-02-24 04:16:32,824 INFO L226 Difference]: Without dead ends: 182 [2021-02-24 04:16:32,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2021-02-24 04:16:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-02-24 04:16:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 156. [2021-02-24 04:16:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2021-02-24 04:16:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 169 transitions. [2021-02-24 04:16:32,895 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 169 transitions. Word has length 72 [2021-02-24 04:16:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:32,896 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 169 transitions. [2021-02-24 04:16:32,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-24 04:16:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 169 transitions. [2021-02-24 04:16:32,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-02-24 04:16:32,899 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:32,900 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:32,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:16:32,900 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:32,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:32,901 INFO L82 PathProgramCache]: Analyzing trace with hash -710591147, now seen corresponding path program 1 times [2021-02-24 04:16:32,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:32,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061153218] [2021-02-24 04:16:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:32,905 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:32,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:32,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:32,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:32,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:32,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:32,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:32,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:33,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:33,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:33,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:33,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:33,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:33,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:33,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:33,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:33,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:33,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-24 04:16:33,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061153218] [2021-02-24 04:16:33,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:33,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-24 04:16:33,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384212287] [2021-02-24 04:16:33,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-24 04:16:33,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:33,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-24 04:16:33,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:16:33,239 INFO L87 Difference]: Start difference. First operand 156 states and 169 transitions. Second operand 15 states. [2021-02-24 04:16:35,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:35,396 INFO L93 Difference]: Finished difference Result 226 states and 247 transitions. [2021-02-24 04:16:35,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-24 04:16:35,397 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 72 [2021-02-24 04:16:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:35,400 INFO L225 Difference]: With dead ends: 226 [2021-02-24 04:16:35,401 INFO L226 Difference]: Without dead ends: 224 [2021-02-24 04:16:35,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=806, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 04:16:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-02-24 04:16:35,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 199. [2021-02-24 04:16:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-02-24 04:16:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 217 transitions. [2021-02-24 04:16:35,496 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 217 transitions. Word has length 72 [2021-02-24 04:16:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:35,500 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 217 transitions. [2021-02-24 04:16:35,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-24 04:16:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 217 transitions. [2021-02-24 04:16:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-02-24 04:16:35,509 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:35,509 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:35,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:16:35,510 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:35,514 INFO L82 PathProgramCache]: Analyzing trace with hash -562495935, now seen corresponding path program 1 times [2021-02-24 04:16:35,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:35,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079202486] [2021-02-24 04:16:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:35,520 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:35,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:35,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:35,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:35,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:35,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:35,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:16:35,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:16:35,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:16:35,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:16:35,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:35,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:35,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:35,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:35,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:35,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:35,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:35,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:35,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:35,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:35,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:35,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:36,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:36,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:36,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:36,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:36,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:36,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:36,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:36,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-02-24 04:16:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:36,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:36,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-02-24 04:16:36,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079202486] [2021-02-24 04:16:36,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:36,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:16:36,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207537941] [2021-02-24 04:16:36,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:16:36,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:36,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:16:36,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:16:36,081 INFO L87 Difference]: Start difference. First operand 199 states and 217 transitions. Second operand 16 states. [2021-02-24 04:16:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:37,720 INFO L93 Difference]: Finished difference Result 211 states and 231 transitions. [2021-02-24 04:16:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-24 04:16:37,722 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 84 [2021-02-24 04:16:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:37,728 INFO L225 Difference]: With dead ends: 211 [2021-02-24 04:16:37,729 INFO L226 Difference]: Without dead ends: 147 [2021-02-24 04:16:37,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2021-02-24 04:16:37,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-02-24 04:16:37,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 118. [2021-02-24 04:16:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-24 04:16:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2021-02-24 04:16:37,770 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 84 [2021-02-24 04:16:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:37,771 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2021-02-24 04:16:37,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:16:37,771 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2021-02-24 04:16:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-02-24 04:16:37,775 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:37,775 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:37,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:16:37,777 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:37,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:37,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2003080282, now seen corresponding path program 2 times [2021-02-24 04:16:37,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:37,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139328900] [2021-02-24 04:16:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:37,783 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:37,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:37,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:37,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:37,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:37,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:37,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:37,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:37,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:37,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:37,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:38,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:38,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:38,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:16:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-24 04:16:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:38,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:38,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-24 04:16:38,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139328900] [2021-02-24 04:16:38,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:38,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 04:16:38,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29871687] [2021-02-24 04:16:38,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 04:16:38,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:38,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 04:16:38,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:16:38,450 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand 20 states. [2021-02-24 04:16:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:40,850 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2021-02-24 04:16:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-24 04:16:40,851 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2021-02-24 04:16:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:40,854 INFO L225 Difference]: With dead ends: 173 [2021-02-24 04:16:40,854 INFO L226 Difference]: Without dead ends: 171 [2021-02-24 04:16:40,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2021-02-24 04:16:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-02-24 04:16:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 124. [2021-02-24 04:16:40,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-02-24 04:16:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 133 transitions. [2021-02-24 04:16:40,883 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 133 transitions. Word has length 99 [2021-02-24 04:16:40,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:40,884 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 133 transitions. [2021-02-24 04:16:40,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 04:16:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 133 transitions. [2021-02-24 04:16:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-02-24 04:16:40,885 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:40,886 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:40,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:16:40,886 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:40,887 INFO L82 PathProgramCache]: Analyzing trace with hash 881317306, now seen corresponding path program 1 times [2021-02-24 04:16:40,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:40,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598225276] [2021-02-24 04:16:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:40,891 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:40,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:40,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:40,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:40,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:40,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:40,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:40,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:40,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:40,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:40,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:40,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:40,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:41,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:41,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:41,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:16:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-24 04:16:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:41,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:41,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-24 04:16:41,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598225276] [2021-02-24 04:16:41,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:41,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 04:16:41,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071324797] [2021-02-24 04:16:41,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 04:16:41,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:41,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 04:16:41,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:16:41,432 INFO L87 Difference]: Start difference. First operand 124 states and 133 transitions. Second operand 20 states. [2021-02-24 04:16:43,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:43,862 INFO L93 Difference]: Finished difference Result 196 states and 209 transitions. [2021-02-24 04:16:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-24 04:16:43,863 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2021-02-24 04:16:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:43,865 INFO L225 Difference]: With dead ends: 196 [2021-02-24 04:16:43,865 INFO L226 Difference]: Without dead ends: 194 [2021-02-24 04:16:43,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=332, Invalid=1648, Unknown=0, NotChecked=0, Total=1980 [2021-02-24 04:16:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-02-24 04:16:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 147. [2021-02-24 04:16:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2021-02-24 04:16:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-02-24 04:16:43,901 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 99 [2021-02-24 04:16:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:43,901 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-02-24 04:16:43,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 04:16:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-02-24 04:16:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-02-24 04:16:43,903 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:43,903 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:43,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:16:43,904 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:43,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:43,904 INFO L82 PathProgramCache]: Analyzing trace with hash -39618822, now seen corresponding path program 2 times [2021-02-24 04:16:43,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:43,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937655562] [2021-02-24 04:16:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:43,907 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:43,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:43,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:43,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:43,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:43,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:43,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:43,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:43,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:43,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:43,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:43,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:43,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:44,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:44,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:44,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:16:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-24 04:16:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:44,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:44,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-02-24 04:16:44,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937655562] [2021-02-24 04:16:44,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:44,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 04:16:44,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214213452] [2021-02-24 04:16:44,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 04:16:44,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:44,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 04:16:44,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:16:44,379 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 20 states. [2021-02-24 04:16:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:46,902 INFO L93 Difference]: Finished difference Result 213 states and 228 transitions. [2021-02-24 04:16:46,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-24 04:16:46,903 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2021-02-24 04:16:46,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:46,905 INFO L225 Difference]: With dead ends: 213 [2021-02-24 04:16:46,906 INFO L226 Difference]: Without dead ends: 211 [2021-02-24 04:16:46,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=346, Invalid=1634, Unknown=0, NotChecked=0, Total=1980 [2021-02-24 04:16:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-02-24 04:16:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 187. [2021-02-24 04:16:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2021-02-24 04:16:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 200 transitions. [2021-02-24 04:16:46,952 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 200 transitions. Word has length 99 [2021-02-24 04:16:46,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:46,953 INFO L480 AbstractCegarLoop]: Abstraction has 187 states and 200 transitions. [2021-02-24 04:16:46,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 04:16:46,953 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 200 transitions. [2021-02-24 04:16:46,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-02-24 04:16:46,955 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:46,955 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2021-02-24 04:16:46,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:16:46,955 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:46,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:46,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1220663755, now seen corresponding path program 3 times [2021-02-24 04:16:46,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:46,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696675402] [2021-02-24 04:16:46,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:46,959 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:47,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:47,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:16:47,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:16:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-24 04:16:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 04:16:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-24 04:16:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:47,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:47,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-02-24 04:16:47,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696675402] [2021-02-24 04:16:47,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:47,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-24 04:16:47,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687116673] [2021-02-24 04:16:47,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-24 04:16:47,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:47,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-24 04:16:47,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-24 04:16:47,640 INFO L87 Difference]: Start difference. First operand 187 states and 200 transitions. Second operand 25 states. [2021-02-24 04:16:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:51,522 INFO L93 Difference]: Finished difference Result 242 states and 257 transitions. [2021-02-24 04:16:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-24 04:16:51,522 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 126 [2021-02-24 04:16:51,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:51,525 INFO L225 Difference]: With dead ends: 242 [2021-02-24 04:16:51,525 INFO L226 Difference]: Without dead ends: 176 [2021-02-24 04:16:51,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=576, Invalid=2846, Unknown=0, NotChecked=0, Total=3422 [2021-02-24 04:16:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-02-24 04:16:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 164. [2021-02-24 04:16:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-02-24 04:16:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 174 transitions. [2021-02-24 04:16:51,572 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 174 transitions. Word has length 126 [2021-02-24 04:16:51,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:51,573 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 174 transitions. [2021-02-24 04:16:51,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-24 04:16:51,573 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 174 transitions. [2021-02-24 04:16:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-02-24 04:16:51,575 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:51,575 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2021-02-24 04:16:51,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:16:51,575 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:51,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2141599883, now seen corresponding path program 4 times [2021-02-24 04:16:51,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:51,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080151741] [2021-02-24 04:16:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:51,579 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:51,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:51,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:51,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:51,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:51,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:16:51,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:16:51,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:51,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:16:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-02-24 04:16:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-24 04:16:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-02-24 04:16:51,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:16:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-24 04:16:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-02-24 04:16:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-02-24 04:16:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-24 04:16:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-02-24 04:16:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:51,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:51,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-02-24 04:16:51,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080151741] [2021-02-24 04:16:51,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:51,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:16:51,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212748854] [2021-02-24 04:16:51,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:16:51,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:51,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:16:51,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:16:51,871 INFO L87 Difference]: Start difference. First operand 164 states and 174 transitions. Second operand 12 states. [2021-02-24 04:16:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:52,630 INFO L93 Difference]: Finished difference Result 168 states and 177 transitions. [2021-02-24 04:16:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 04:16:52,631 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 126 [2021-02-24 04:16:52,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:52,632 INFO L225 Difference]: With dead ends: 168 [2021-02-24 04:16:52,632 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:16:52,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:16:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:16:52,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:16:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:16:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:16:52,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2021-02-24 04:16:52,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:52,635 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:16:52,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:16:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:16:52,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:16:52,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:16:52,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:16:55,934 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-02-24 04:16:56,149 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 29 [2021-02-24 04:16:56,510 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2021-02-24 04:16:56,903 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-02-24 04:16:57,127 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2021-02-24 04:16:57,240 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2021-02-24 04:16:57,564 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-02-24 04:16:57,789 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2021-02-24 04:16:58,158 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-02-24 04:16:58,286 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 20 [2021-02-24 04:16:58,707 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-02-24 04:16:58,983 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2021-02-24 04:16:59,223 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 35 [2021-02-24 04:16:59,529 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 35 [2021-02-24 04:16:59,822 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 35 [2021-02-24 04:17:00,196 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2021-02-24 04:17:00,653 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2021-02-24 04:17:01,153 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2021-02-24 04:17:01,604 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 52 [2021-02-24 04:17:01,883 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2021-02-24 04:17:02,335 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 50 [2021-02-24 04:17:02,601 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 35 [2021-02-24 04:17:03,104 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 51 [2021-02-24 04:17:03,380 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2021-02-24 04:17:03,842 WARN L202 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2021-02-24 04:17:03,957 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 20 [2021-02-24 04:17:04,368 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2021-02-24 04:17:04,677 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2021-02-24 04:17:05,022 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2021-02-24 04:17:05,339 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2021-02-24 04:17:05,625 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2021-02-24 04:17:05,820 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2021-02-24 04:17:05,849 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 5) no Hoare annotation was computed. [2021-02-24 04:17:05,849 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 5) no Hoare annotation was computed. [2021-02-24 04:17:05,849 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 5) no Hoare annotation was computed. [2021-02-24 04:17:05,849 INFO L192 CegarLoopUtils]: At program point L5-4(line 5) the Hoare annotation is: true [2021-02-24 04:17:05,850 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,850 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,850 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2021-02-24 04:17:05,850 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,850 INFO L192 CegarLoopUtils]: At program point L5(line 5) the Hoare annotation is: true [2021-02-24 04:17:05,850 INFO L192 CegarLoopUtils]: At program point L5-1(line 5) the Hoare annotation is: true [2021-02-24 04:17:05,850 INFO L192 CegarLoopUtils]: At program point L5-2(line 5) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point L5-3(line 5) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point L8-3(lines 7 9) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 40 54) the Hoare annotation is: true [2021-02-24 04:17:05,851 INFO L192 CegarLoopUtils]: At program point L52(line 52) the Hoare annotation is: true [2021-02-24 04:17:05,852 INFO L185 CegarLoopUtils]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ax~1 0) (= main_~ai~1 0))) [2021-02-24 04:17:05,852 INFO L192 CegarLoopUtils]: At program point L50-1(line 50) the Hoare annotation is: true [2021-02-24 04:17:05,852 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2021-02-24 04:17:05,852 INFO L185 CegarLoopUtils]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= |main_#t~mem19| 0))) [2021-02-24 04:17:05,852 INFO L185 CegarLoopUtils]: At program point L46(line 46) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-24 04:17:05,852 INFO L185 CegarLoopUtils]: At program point L48-2(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ai~1 0) (= |main_#t~mem19| 0))) [2021-02-24 04:17:05,853 INFO L185 CegarLoopUtils]: At program point L46-1(line 46) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |main_#t~malloc17.base|)) [2021-02-24 04:17:05,853 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 40 54) the Hoare annotation is: true [2021-02-24 04:17:05,853 INFO L185 CegarLoopUtils]: At program point L42(line 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,853 INFO L185 CegarLoopUtils]: At program point L42-1(line 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,853 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 40 54) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,853 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ai~1 0))) [2021-02-24 04:17:05,854 INFO L185 CegarLoopUtils]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= |main_#t~mem20| 0) (= main_~ai~1 0))) [2021-02-24 04:17:05,854 INFO L185 CegarLoopUtils]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2021-02-24 04:17:05,854 INFO L185 CegarLoopUtils]: At program point L49-2(line 49) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ax~1 0) (= |main_#t~mem20| 0) (= main_~ai~1 0))) [2021-02-24 04:17:05,854 INFO L185 CegarLoopUtils]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2021-02-24 04:17:05,854 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,854 INFO L185 CegarLoopUtils]: At program point L47-2(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2021-02-24 04:17:05,855 INFO L185 CegarLoopUtils]: At program point L45-1(line 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,855 INFO L185 CegarLoopUtils]: At program point L47-3(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2021-02-24 04:17:05,855 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,855 INFO L185 CegarLoopUtils]: At program point L43-1(line 43) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,855 INFO L185 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,855 INFO L185 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:17:05,856 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,856 INFO L185 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse2 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse0 (= (select |#memory_int| check_~a.base) .cse5)) (.cse1 (= |check_#t~mem13| 0)) (.cse3 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |check_#in~x|)) .cse3) (or .cse2 (and (or (let ((.cse4 (+ check_~y 1))) (and (<= .cse4 |check_#in~n|) (<= .cse4 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse0 .cse1) (not (= |check_#in~x| 0)) .cse3)))) [2021-02-24 04:17:05,856 INFO L192 CegarLoopUtils]: At program point checkENTRY(lines 16 38) the Hoare annotation is: true [2021-02-24 04:17:05,856 INFO L185 CegarLoopUtils]: At program point L33-2(line 33) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (= check_~ai~0 0)) (.cse2 (= (select |#memory_int| check_~a.base) .cse6)) (.cse3 (= |check_#t~mem13| 0)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) (and .cse1 .cse2 .cse3) .cse4) (or .cse0 (and (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse1 .cse2 .cse3) (not (= |check_#in~x| 0)) .cse4)))) [2021-02-24 04:17:05,856 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,857 INFO L185 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,857 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2021-02-24 04:17:05,857 INFO L185 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,857 INFO L185 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2021-02-24 04:17:05,857 INFO L185 CegarLoopUtils]: At program point L27-2(line 27) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2021-02-24 04:17:05,858 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2) (or .cse0 (and .cse3 .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,858 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2) (or .cse0 (and .cse3 .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,858 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (let ((.cse3 ((as const (Array Int Int)) 0)) (.cse5 (+ check_~y 1))) (let ((.cse1 (<= .cse5 |check_#in~n|)) (.cse2 (<= .cse5 check_~n)) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse3)))) (and (or .cse0 (and .cse1 .cse2 (= (select |#memory_int| check_~a.base) .cse3) (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or (and .cse1 .cse2 (= check_~x 0)) .cse0 (not (= |check_#in~x| 0)) .cse4)))) [2021-02-24 04:17:05,858 INFO L185 CegarLoopUtils]: At program point checkFINAL(lines 16 38) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 1 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (= (select |#memory_int| check_~a.base) .cse0))) [2021-02-24 04:17:05,859 INFO L185 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse5))) (.cse2 (= check_~ai~0 0)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (and .cse2 .cse3)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and (or (let ((.cse4 (+ check_~y 1))) (and (<= .cse4 |check_#in~n|) (<= .cse4 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2 .cse3))))) [2021-02-24 04:17:05,859 INFO L185 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse6))) (.cse2 (= |check_#t~mem14| 0)) (.cse3 (= check_~ai~0 0)) (.cse4 (= (select |#memory_int| check_~a.base) .cse6))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (and .cse2 .cse3 .cse4)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and .cse2 (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse3 .cse4))))) [2021-02-24 04:17:05,859 INFO L185 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= check_~ax~0 0)) (.cse3 (= |check_#t~mem14| 0)) (.cse5 (= check_~ai~0 0)) (.cse6 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and .cse2 .cse3 (or (let ((.cse4 (+ check_~y 1))) (and (<= .cse4 |check_#in~n|) (<= .cse4 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse5 .cse6)) (or .cse0 (not (<= 1 |check_#in~x|)) (and .cse2 .cse3 .cse5 .cse6) .cse1)))) [2021-02-24 04:17:05,859 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2) (or .cse0 (and .cse3 .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,860 INFO L185 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: (let ((.cse8 ((as const (Array Int Int)) 0)) (.cse9 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (= |check_#t~mem8| 0)) (.cse4 (<= .cse9 |check_#in~n|)) (.cse5 (<= .cse9 check_~n)) (.cse6 (= (select |#memory_int| check_~a.base) .cse8)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse8))) (.cse2 (not (<= 2 |check_#in~x|)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and .cse3 .cse4 .cse5 .cse6 (= check_~x 0))) (or .cse0 (not (<= 1 |check_#in~x|)) (and .cse3 .cse4 .cse5 .cse6 (<= 1 check_~x)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse7 (+ check_~y 2))) (and (<= .cse7 check_~n) (<= .cse7 |check_#in~n|))) .cse2)))) [2021-02-24 04:17:05,860 INFO L185 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2) (or .cse0 (and .cse3 .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,860 INFO L185 CegarLoopUtils]: At program point L26-2(lines 26 27) the Hoare annotation is: (let ((.cse9 ((as const (Array Int Int)) 0)) (.cse10 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (= |check_#t~mem8| 0)) (.cse4 (<= .cse10 |check_#in~n|)) (.cse5 (<= .cse10 check_~n)) (.cse6 (= |check_#t~mem9| 0)) (.cse7 (= (select |#memory_int| check_~a.base) .cse9)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse9))) (.cse2 (not (<= 2 |check_#in~x|)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 .cse6 .cse7 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and .cse3 .cse4 .cse5 .cse6 .cse7 (= check_~x 0))) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse8 (+ check_~y 2))) (and (<= .cse8 check_~n) (<= .cse8 |check_#in~n|))) .cse2)))) [2021-02-24 04:17:05,860 INFO L185 CegarLoopUtils]: At program point L26-3(line 26) the Hoare annotation is: (let ((.cse8 (+ check_~y 1)) (.cse7 ((as const (Array Int Int)) 0))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7))) (.cse4 (<= .cse8 |check_#in~n|)) (.cse5 (<= .cse8 check_~n)) (.cse6 (= (select |#memory_int| check_~a.base) .cse7))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 .cse2 (let ((.cse3 (+ check_~y 2))) (and (<= .cse3 check_~n) (<= .cse3 |check_#in~n|)))) (or .cse0 (and .cse4 .cse5 .cse6 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and (= |check_#t~mem8| 0) .cse4 .cse5 (= |check_#t~mem9| 0) .cse6 (= check_~x 0)))))) [2021-02-24 04:17:05,861 INFO L185 CegarLoopUtils]: At program point L26-4(line 26) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and (= |check_#t~mem8| 0) .cse3 .cse4 .cse5 (= check_~x 0))) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 .cse2 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|)))) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1)))) [2021-02-24 04:17:05,861 INFO L185 CegarLoopUtils]: At program point L26-5(line 26) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse4 (<= .cse8 |check_#in~n|)) (.cse5 (<= .cse8 check_~n)) (.cse6 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 .cse2 (let ((.cse3 (+ check_~y 2))) (and (<= .cse3 check_~n) (<= .cse3 |check_#in~n|)))) (or .cse0 (and .cse4 .cse5 .cse6 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or .cse0 (and .cse4 .cse5 .cse6 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,861 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2) (or .cse0 (and .cse3 .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,862 INFO L185 CegarLoopUtils]: At program point L26-6(line 26) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7))) (.cse2 (not (<= 2 |check_#in~x|)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (and .cse3 (<= 1 |check_#t~post10|) .cse4 .cse5 (<= 1 check_~x))) (or .cse0 (and .cse3 (= |check_#t~post10| 0) .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2)))) [2021-02-24 04:17:05,862 INFO L185 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0)) (.cse8 (+ check_~y 1))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= .cse8 |check_#in~n|)) (.cse4 (<= .cse8 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or .cse0 (and .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse6 (+ check_~y 2))) (and (<= .cse6 check_~n) (<= .cse6 |check_#in~n|))) .cse2) (or .cse0 (and .cse3 .cse4 .cse5 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1)))) [2021-02-24 04:17:05,862 INFO L185 CegarLoopUtils]: At program point L26-7(line 26) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0)) (.cse7 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (<= .cse7 |check_#in~n|)) (.cse3 (<= .cse7 check_~n)) (.cse4 (= (select |#memory_int| check_~a.base) .cse6)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and .cse2 .cse3 (= |check_#t~post10| 0) .cse4 (<= 1 check_~x))) (or .cse0 (and .cse2 (<= 1 |check_#t~post10|) .cse3 .cse4 (<= 2 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 (let ((.cse5 (+ check_~y 2))) (and (<= .cse5 check_~n) (<= .cse5 |check_#in~n|))) (not (<= 2 |check_#in~x|)))))) [2021-02-24 04:17:05,862 INFO L185 CegarLoopUtils]: At program point checkEXIT(lines 16 38) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 1 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (= (select |#memory_int| check_~a.base) .cse0))) [2021-02-24 04:17:05,862 INFO L185 CegarLoopUtils]: At program point L26-9(line 26) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2021-02-24 04:17:05,863 INFO L185 CegarLoopUtils]: At program point L16(lines 16 38) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 .cse1 (not (<= 2 |check_#in~x|)) (<= 2 check_~x)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (= check_~x 0)) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (<= 1 check_~x)))) [2021-02-24 04:17:05,863 INFO L185 CegarLoopUtils]: At program point L26-10(line 26) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2021-02-24 04:17:05,863 INFO L185 CegarLoopUtils]: At program point L16-1(lines 16 38) the Hoare annotation is: (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= (+ check_~y 1) |check_#in~n|)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 .cse2 (<= (+ check_~y 2) |check_#in~n|)) (or .cse0 (and .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1) (or .cse0 (and .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1))) [2021-02-24 04:17:05,863 INFO L185 CegarLoopUtils]: At program point L26-11(lines 26 27) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse1 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (<= .cse6 |check_#in~n|)) (.cse3 (<= .cse6 check_~n)) (.cse4 (= (select |#memory_int| check_~a.base) .cse5)) (.cse0 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse0 (<= (+ check_~y 2) check_~n) (not (<= 2 |check_#in~x|))) (or .cse1 (and .cse2 .cse3 .cse4 (<= 2 check_~x)) (not (<= 1 |check_#in~x|)) .cse0) (or .cse1 (and .cse2 .cse3 .cse4 (<= 1 check_~x)) (not (= |check_#in~x| 0)) .cse0)))) [2021-02-24 04:17:05,864 INFO L185 CegarLoopUtils]: At program point L16-2(lines 16 38) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= (+ check_~y 1) |check_#in~n|)) (.cse4 (= (select |#memory_int| check_~a.base) .cse5)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 .cse2 (<= (+ check_~y 2) |check_#in~n|)) (or .cse0 (and .cse3 .cse4 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1) (or .cse0 (and .cse3 .cse4 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1)))) [2021-02-24 04:17:05,864 INFO L185 CegarLoopUtils]: At program point L16-3(lines 16 38) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse2 (not (<= 2 |check_#in~x|))) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse3 (<= (+ check_~y 1) |check_#in~n|)) (.cse4 (= (select |#memory_int| check_~a.base) .cse5)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 .cse1 .cse2 (<= 2 check_~x)) (or (not (<= (+ |check_#in~y| 2) |check_#in~n|)) .cse1 .cse2 (<= (+ check_~y 2) |check_#in~n|)) (or .cse0 (and .cse3 .cse4 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse1) (or .cse0 (and .cse3 .cse4 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse1)))) [2021-02-24 04:17:05,864 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse3 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse0 (= check_~ax~0 0)) (.cse1 (= check_~ai~0 0)) (.cse2 (= (select |#memory_int| check_~a.base) .cse6)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or (and .cse0 .cse1 .cse2) .cse3 (not (<= 1 |check_#in~x|)) .cse4) (or .cse3 (and .cse0 (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse1 .cse2) (not (= |check_#in~x| 0)) .cse4)))) [2021-02-24 04:17:05,864 INFO L185 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= check_~ax~0 0) (= check_~ai~0 0) (= (select |#memory_int| check_~a.base) .cse0)) (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 1 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)))) [2021-02-24 04:17:05,864 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2021-02-24 04:17:05,864 INFO L185 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 04:17:05,864 INFO L185 CegarLoopUtils]: At program point L11-1(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point L11-2(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point L11-4(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point #Ultimate.meminitEXIT(line -1) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |#Ultimate.meminit_#ptr.base|)) [2021-02-24 04:17:05,865 INFO L185 CegarLoopUtils]: At program point #Ultimate.meminitFINAL(line -1) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |#Ultimate.meminit_#ptr.base|)) [2021-02-24 04:17:05,888 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.ProcedureContractResult.getLongDescription(ProcedureContractResult.java:74) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:558) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createProcedureContractResults(TraceAbstractionStarter.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 04:17:05,893 INFO L168 Benchmark]: Toolchain (without parser) took 41167.73 ms. Allocated memory was 151.0 MB in the beginning and 360.7 MB in the end (delta: 209.7 MB). Free memory was 128.0 MB in the beginning and 225.2 MB in the end (delta: -97.2 MB). Peak memory consumption was 212.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:17:05,893 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:17:05,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.10 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 116.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:17:05,895 INFO L168 Benchmark]: Boogie Preprocessor took 92.92 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:17:05,896 INFO L168 Benchmark]: RCFGBuilder took 897.28 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 122.9 MB in the end (delta: -7.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:17:05,896 INFO L168 Benchmark]: TraceAbstraction took 39785.03 ms. Allocated memory was 151.0 MB in the beginning and 360.7 MB in the end (delta: 209.7 MB). Free memory was 122.5 MB in the beginning and 225.2 MB in the end (delta: -102.7 MB). Peak memory consumption was 207.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:17:05,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 371.10 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 116.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.92 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 897.28 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 122.9 MB in the end (delta: -7.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 39785.03 ms. Allocated memory was 151.0 MB in the beginning and 360.7 MB in the end (delta: 209.7 MB). Free memory was 122.5 MB in the beginning and 225.2 MB in the end (delta: -102.7 MB). Peak memory consumption was 207.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: 1 - ProcedureContractResult [Line: 40]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 10]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...