/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/eca-rers2012/Problem02_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:05:32,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:05:32,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:05:32,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:05:32,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:05:32,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:05:32,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:05:32,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:05:32,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:05:32,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:05:33,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:05:33,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:05:33,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:05:33,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:05:33,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:05:33,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:05:33,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:05:33,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:05:33,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:05:33,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:05:33,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:05:33,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:05:33,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:05:33,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:05:33,036 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:05:33,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:05:33,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:05:33,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:05:33,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:05:33,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:05:33,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:05:33,038 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:05:33,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:05:33,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:05:33,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:05:33,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:05:33,039 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:05:33,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:05:33,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:05:33,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:05:33,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:05:33,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:05:33,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:05:33,040 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:05:33,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:05:33,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:05:33,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:05:33,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:05:33,424 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:05:33,424 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:05:33,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2021-02-22 02:05:33,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115e7eb4b/65a655f243f74f12893023692b126c21/FLAGb54a13877 [2021-02-22 02:05:34,263 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:05:34,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c [2021-02-22 02:05:34,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115e7eb4b/65a655f243f74f12893023692b126c21/FLAGb54a13877 [2021-02-22 02:05:34,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/115e7eb4b/65a655f243f74f12893023692b126c21 [2021-02-22 02:05:34,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:05:34,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:05:34,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:05:34,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:05:34,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:05:34,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:05:34" (1/1) ... [2021-02-22 02:05:34,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8f7fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:34, skipping insertion in model container [2021-02-22 02:05:34,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:05:34" (1/1) ... [2021-02-22 02:05:34,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:05:34,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:05:34,964 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c[17470,17483] [2021-02-22 02:05:35,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:05:35,028 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:05:35,104 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label04.c[17470,17483] [2021-02-22 02:05:35,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:05:35,163 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:05:35,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35 WrapperNode [2021-02-22 02:05:35,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:05:35,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:05:35,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:05:35,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:05:35,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (1/1) ... [2021-02-22 02:05:35,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:05:35,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:05:35,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:05:35,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:05:35,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (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 [2021-02-22 02:05:35,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:05:35,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:05:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:05:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:05:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:05:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:05:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:05:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:05:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:05:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:05:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:05:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:05:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:05:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:05:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:05:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:05:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:05:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:05:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:05:36,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:05:36,755 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:05:36,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:05:36 BoogieIcfgContainer [2021-02-22 02:05:36,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:05:36,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:05:36,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:05:36,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:05:36,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:05:34" (1/3) ... [2021-02-22 02:05:36,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f41c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:05:36, skipping insertion in model container [2021-02-22 02:05:36,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:05:35" (2/3) ... [2021-02-22 02:05:36,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f41c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:05:36, skipping insertion in model container [2021-02-22 02:05:36,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:05:36" (3/3) ... [2021-02-22 02:05:36,779 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label04.c [2021-02-22 02:05:36,786 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:05:36,791 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:05:36,809 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:05:36,833 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:05:36,833 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:05:36,833 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:05:36,833 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:05:36,833 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:05:36,834 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:05:36,834 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:05:36,834 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:05:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-22 02:05:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-02-22 02:05:36,884 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:05:36,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:05:36,886 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:05:36,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:05:36,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1766511977, now seen corresponding path program 1 times [2021-02-22 02:05:36,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:05:36,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625416992] [2021-02-22 02:05:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:05:36,973 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:05:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:37,363 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-22 02:05:37,365 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-22 02:05:37,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:37,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:37,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:37,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:05:37,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:37,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:05:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:37,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:37,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:37,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:37,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:05:37,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625416992] [2021-02-22 02:05:37,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:05:37,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:05:37,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401958036] [2021-02-22 02:05:37,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:05:37,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:05:37,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:05:37,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:05:37,559 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 5 states. [2021-02-22 02:05:39,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:05:39,988 INFO L93 Difference]: Finished difference Result 1214 states and 1660 transitions. [2021-02-22 02:05:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:05:39,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2021-02-22 02:05:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:05:40,027 INFO L225 Difference]: With dead ends: 1214 [2021-02-22 02:05:40,027 INFO L226 Difference]: Without dead ends: 635 [2021-02-22 02:05:40,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:05:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-02-22 02:05:40,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 621. [2021-02-22 02:05:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2021-02-22 02:05:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 782 transitions. [2021-02-22 02:05:40,256 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 782 transitions. Word has length 140 [2021-02-22 02:05:40,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:05:40,257 INFO L480 AbstractCegarLoop]: Abstraction has 621 states and 782 transitions. [2021-02-22 02:05:40,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:05:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 782 transitions. [2021-02-22 02:05:40,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-22 02:05:40,264 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:05:40,265 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:05:40,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:05:40,265 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:05:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:05:40,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1636229123, now seen corresponding path program 1 times [2021-02-22 02:05:40,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:05:40,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51270442] [2021-02-22 02:05:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:05:40,323 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,351 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,363 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,371 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,405 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:05:40,420 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:05:40,428 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:05:40,432 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:40,437 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:40,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:05:40,446 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:05:40,450 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,455 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,458 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,463 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,491 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:05:40,496 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:05:40,501 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:05:40,503 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:40,504 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:40,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:05:40,510 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:05:40,513 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,518 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,520 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,525 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,554 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:05:40,557 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:05:40,562 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:05:40,564 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:40,566 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:40,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:05:40,572 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:05:40,574 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,579 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,582 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:05:40,587 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:05:40,620 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:05:40,623 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:05:40,626 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:05:40,628 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:40,630 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:40,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:05:40,637 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:05:40,637 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:05:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:40,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:40,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:40,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:05:40,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:05:40,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:05:40,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:05:40,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:05:40,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:40,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:40,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:05:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:05:41,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:41,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:05:41,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:05:41,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:41,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:05:41,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:05:41,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:41,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:05:41,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:05:41,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:41,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:05:41,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:05:41,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:05:41,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 02:05:41,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:05:41,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:05:41,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-22 02:05:41,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:41,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:05:41,297 WARN L141 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-02-22 02:05:41,299 WARN L147 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size 58 [2021-02-22 02:05:41,350 WARN L141 QuantifierPusher]: treesize reduction 3, result has 96.5 percent of original size [2021-02-22 02:05:41,352 WARN L147 QuantifierPusher]: treesize reduction 3, result has 96.5 percent of original size 82 [2021-02-22 02:05:41,421 WARN L141 QuantifierPusher]: treesize reduction 25, result has 76.6 percent of original size [2021-02-22 02:05:41,423 WARN L147 QuantifierPusher]: treesize reduction 25, result has 76.6 percent of original size 82 [2021-02-22 02:05:41,426 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size [2021-02-22 02:05:41,428 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size 105 [2021-02-22 02:05:41,538 WARN L141 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-02-22 02:05:41,540 WARN L147 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size 126 [2021-02-22 02:05:41,638 WARN L141 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size [2021-02-22 02:05:41,640 WARN L147 QuantifierPusher]: treesize reduction 3, result has 98.0 percent of original size 150 [2021-02-22 02:05:41,755 WARN L141 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size [2021-02-22 02:05:41,758 WARN L147 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 193 [2021-02-22 02:05:41,992 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-02-22 02:05:41,997 WARN L141 QuantifierPusher]: treesize reduction 213, result has 0.5 percent of original size [2021-02-22 02:05:41,999 WARN L147 QuantifierPusher]: treesize reduction 213, result has 0.5 percent of original size 1 [2021-02-22 02:05:42,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:42,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:05:42,001 WARN L141 QuantifierPusher]: treesize reduction 26, result has 3.7 percent of original size [2021-02-22 02:05:42,002 WARN L147 QuantifierPusher]: treesize reduction 26, result has 3.7 percent of original size 1 [2021-02-22 02:05:42,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51270442] [2021-02-22 02:05:42,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:05:42,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-22 02:05:42,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057383973] [2021-02-22 02:05:42,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-22 02:05:42,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:05:42,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-22 02:05:42,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-02-22 02:05:42,006 INFO L87 Difference]: Start difference. First operand 621 states and 782 transitions. Second operand 17 states. [2021-02-22 02:05:42,907 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-02-22 02:05:43,069 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-22 02:05:43,276 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-22 02:05:43,512 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-22 02:05:43,790 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-02-22 02:05:44,104 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-02-22 02:05:47,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:05:47,915 INFO L93 Difference]: Finished difference Result 2136 states and 2827 transitions. [2021-02-22 02:05:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-22 02:05:47,915 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 166 [2021-02-22 02:05:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:05:47,927 INFO L225 Difference]: With dead ends: 2136 [2021-02-22 02:05:47,927 INFO L226 Difference]: Without dead ends: 1545 [2021-02-22 02:05:47,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2021-02-22 02:05:47,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2021-02-22 02:05:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1231. [2021-02-22 02:05:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2021-02-22 02:05:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1618 transitions. [2021-02-22 02:05:48,253 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1618 transitions. Word has length 166 [2021-02-22 02:05:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:05:48,254 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1618 transitions. [2021-02-22 02:05:48,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-22 02:05:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1618 transitions. [2021-02-22 02:05:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-02-22 02:05:48,261 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:05:48,261 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:05:48,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:05:48,262 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:05:48,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:05:48,263 INFO L82 PathProgramCache]: Analyzing trace with hash 164245407, now seen corresponding path program 1 times [2021-02-22 02:05:48,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:05:48,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392193780] [2021-02-22 02:05:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:05:48,288 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,288 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,290 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,291 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,293 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,295 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,297 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,297 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,299 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,299 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,301 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,301 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,304 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,306 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,308 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,309 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,311 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,312 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,314 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,316 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,319 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,320 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,322 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,322 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,324 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,324 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,327 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,327 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,330 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,332 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,333 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,334 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,335 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,336 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,338 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,338 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,341 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,342 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,344 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,345 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,347 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,348 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,351 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,352 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,354 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,356 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,357 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,358 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,360 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 02:05:48,365 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 02:05:48,368 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 02:05:48,374 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 02:05:48,407 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:05:48,410 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:05:48,413 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:05:48,415 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:48,418 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:48,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:48,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:48,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:05:48,423 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:05:48,424 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,425 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,427 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,428 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,431 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,432 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,435 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,435 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,438 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 02:05:48,444 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 02:05:48,446 WARN L141 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size [2021-02-22 02:05:48,452 WARN L147 QuantifierPusher]: treesize reduction 11, result has 83.1 percent of original size 54 [2021-02-22 02:05:48,482 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:05:48,484 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:05:48,487 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:05:48,488 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:05:48,489 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:48,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:05:48,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:05:48,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:05:48,494 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:05:48,495 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,496 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,498 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,499 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,501 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,504 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,506 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,506 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,507 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,508 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,511 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,512 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,519 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,520 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,522 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,522 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,523 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,524 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,525 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,526 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,528 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,529 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,530 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,531 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,532 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,532 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,534 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,534 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,536 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,538 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,539 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,539 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,541 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,541 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,543 WARN L141 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size [2021-02-22 02:05:48,544 WARN L147 QuantifierPusher]: treesize reduction 64, result has 1.5 percent of original size 1 [2021-02-22 02:05:48,546 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:05:48,547 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:05:48,549 WARN L141 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size [2021-02-22 02:05:48,549 WARN L147 QuantifierPusher]: treesize reduction 39, result has 7.1 percent of original size 3 [2021-02-22 02:05:48,549 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:05:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:05:48,590 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:05:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:05:48,649 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:05:48,758 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:05:48,758 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:05:48,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:05:48,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:05:48 BoogieIcfgContainer [2021-02-22 02:05:48,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:05:48,789 INFO L168 Benchmark]: Toolchain (without parser) took 14271.96 ms. Allocated memory was 152.0 MB in the beginning and 371.2 MB in the end (delta: 219.2 MB). Free memory was 125.9 MB in the beginning and 253.9 MB in the end (delta: -128.0 MB). Peak memory consumption was 92.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:05:48,790 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:05:48,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.00 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 131.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:05:48,791 INFO L168 Benchmark]: Boogie Preprocessor took 167.80 ms. Allocated memory is still 152.0 MB. Free memory was 131.9 MB in the beginning and 126.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:05:48,791 INFO L168 Benchmark]: RCFGBuilder took 1422.74 ms. Allocated memory was 152.0 MB in the beginning and 195.0 MB in the end (delta: 43.0 MB). Free memory was 126.7 MB in the beginning and 97.9 MB in the end (delta: 28.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 8.0 GB. [2021-02-22 02:05:48,791 INFO L168 Benchmark]: TraceAbstraction took 12018.05 ms. Allocated memory was 195.0 MB in the beginning and 371.2 MB in the end (delta: 176.2 MB). Free memory was 170.9 MB in the beginning and 253.9 MB in the end (delta: -83.0 MB). Peak memory consumption was 93.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:05:48,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.00 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 131.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 167.80 ms. Allocated memory is still 152.0 MB. Free memory was 131.9 MB in the beginning and 126.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1422.74 ms. Allocated memory was 152.0 MB in the beginning and 195.0 MB in the end (delta: 43.0 MB). Free memory was 126.7 MB in the beginning and 97.9 MB in the end (delta: 28.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12018.05 ms. Allocated memory was 195.0 MB in the beginning and 371.2 MB in the end (delta: 176.2 MB). Free memory was 170.9 MB in the beginning and 253.9 MB in the end (delta: -83.0 MB). Peak memory consumption was 93.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 500]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int a= 1; [L18] int e= 5; [L19] int d= 4; [L20] int f= 6; [L21] int c= 3; [L24] int u = 21; [L25] int v = 22; [L26] int w = 23; [L27] int x = 24; [L28] int y = 25; [L29] int z = 26; [L32] int a25 = 0; [L33] int a11 = 0; [L34] int a28 = 7; [L35] int a19 = 1; [L36] int a21 = 1; [L37] int a17 = 8; [L613] int output = -1; [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL, EXPR calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L64] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L69] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L75] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L79] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L84] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L92] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L101] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L105] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L109] COND TRUE ((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1)) [L110] a17 = 7 [L111] a25 = 0 [L112] a11 = 1 [L113] a28 = 10 [L114] a19 = 0 [L115] return -1; [L624] RET, EXPR calculate_output(input) [L624] output = calculate_output(input) [L616] COND TRUE 1 [L619] int input; [L620] input = __VERIFIER_nondet_int() [L621] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L624] CALL calculate_output(input) [L40] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L45] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L48] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L52] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L57] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L60] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L64] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L69] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L75] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L79] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L84] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L92] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L101] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L105] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L109] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L116] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L123] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L129] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L133] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L140] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L144] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L149] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L153] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L158] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L164] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L169] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L175] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L179] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L185] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L189] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L195] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L197] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L199] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L201] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L204] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L208] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L212] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L222] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L225] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L228] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L233] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L235] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L242] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L244] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L247] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L258] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L263] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L269] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L271] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L286] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L290] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L293] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L296] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L301] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L303] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L307] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L319] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L324] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L338] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L341] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L347] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L359] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L364] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L371] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L378] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L385] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L388] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L390] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L399] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L404] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L408] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L412] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L414] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L417] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L419] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L424] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L427] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L430] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L433] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L436] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L439] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L442] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L445] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8))) [L448] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L451] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==8))) [L454] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==11))&&!(a19==1))&&(a21==1))&&(a17==8))) [L457] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L460] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L463] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==7))) [L466] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==11))&&(a19==1))&&(a21==1))&&(a17==7))) [L469] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L472] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==7))) [L475] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==7))) [L478] COND FALSE !((((((!(a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L481] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&(a19==1))&&(a21==1))&&(a17==8))) [L484] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==9))&&!(a19==1))&&(a21==1))&&(a17==8))) [L487] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==7))) [L490] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==11))&&!(a19==1))&&(a21==1))&&(a17==8))) [L493] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==8))&&!(a19==1))&&(a21==1))&&(a17==8))) [L496] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&!(a19==1))&&(a21==1))&&(a17==8))) [L499] COND TRUE (((((!(a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==7)) [L500] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 539 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 665 SDtfs, 4758 SDslu, 666 SDs, 0 SdLazy, 2764 SolverSat, 520 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1231occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 2 MinimizatonAttempts, 328 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...