/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_valuebound1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 20:13:37,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 20:13:37,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 20:13:37,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-02 20:13:37,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 20:13:37,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 20:13:37,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 20:13:37,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 20:13:37,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 20:13:37,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 20:13:37,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 20:13:37,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 20:13:37,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 20:13:37,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 20:13:37,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 20:13:37,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 20:13:37,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 20:13:37,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 20:13:37,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 20:13:37,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 20:13:37,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 20:13:37,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 20:13:37,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 20:13:37,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 20:13:37,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 20:13:37,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 20:13:37,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 20:13:37,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 20:13:37,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 20:13:37,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 20:13:37,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 20:13:37,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 20:13:37,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 20:13:37,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 20:13:37,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 20:13:37,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 20:13:37,412 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 20:13:37,412 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 20:13:37,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 20:13:37,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 20:13:37,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 20:13:37,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 20:13:37,682 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 20:13:37,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/divbin_valuebound1.i [2021-05-02 20:13:37,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432ce7d4d/39ffc4865927406187963096522f4989/FLAG5a76b21fa [2021-05-02 20:13:38,114 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 20:13:38,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_valuebound1.i [2021-05-02 20:13:38,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432ce7d4d/39ffc4865927406187963096522f4989/FLAG5a76b21fa [2021-05-02 20:13:38,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432ce7d4d/39ffc4865927406187963096522f4989 [2021-05-02 20:13:38,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 20:13:38,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 20:13:38,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 20:13:38,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 20:13:38,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 20:13:38,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4335f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38, skipping insertion in model container [2021-05-02 20:13:38,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 20:13:38,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 20:13:38,278 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_valuebound1.i[958,971] [2021-05-02 20:13:38,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 20:13:38,320 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 20:13:38,341 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/divbin_valuebound1.i[958,971] [2021-05-02 20:13:38,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 20:13:38,367 INFO L208 MainTranslator]: Completed translation [2021-05-02 20:13:38,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38 WrapperNode [2021-05-02 20:13:38,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 20:13:38,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 20:13:38,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 20:13:38,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 20:13:38,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 20:13:38,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 20:13:38,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 20:13:38,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 20:13:38,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (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 [2021-05-02 20:13:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 20:13:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 20:13:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 20:13:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 20:13:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 20:13:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 20:13:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 20:13:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 20:13:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 20:13:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 20:13:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 20:13:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 20:13:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-05-02 20:13:38,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 20:13:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 20:13:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 20:13:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 20:13:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 20:13:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 20:13:38,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 20:13:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 20:13:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 20:13:38,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 20:13:38,768 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-02 20:13:38,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:13:38 BoogieIcfgContainer [2021-05-02 20:13:38,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 20:13:38,780 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 20:13:38,780 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 20:13:38,781 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 20:13:38,782 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:13:38" (1/1) ... [2021-05-02 20:13:38,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 08:13:38 BasicIcfg [2021-05-02 20:13:38,801 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 20:13:38,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 20:13:38,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 20:13:38,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 20:13:38,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 08:13:38" (1/4) ... [2021-05-02 20:13:38,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa42a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 08:13:38, skipping insertion in model container [2021-05-02 20:13:38,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:13:38" (2/4) ... [2021-05-02 20:13:38,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa42a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 08:13:38, skipping insertion in model container [2021-05-02 20:13:38,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:13:38" (3/4) ... [2021-05-02 20:13:38,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa42a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 08:13:38, skipping insertion in model container [2021-05-02 20:13:38,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 08:13:38" (4/4) ... [2021-05-02 20:13:38,808 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin_valuebound1.iJordan [2021-05-02 20:13:38,815 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 20:13:38,819 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 20:13:38,830 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 20:13:38,850 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 20:13:38,851 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 20:13:38,851 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 20:13:38,851 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 20:13:38,851 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 20:13:38,851 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 20:13:38,851 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 20:13:38,851 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 20:13:38,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-02 20:13:38,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-02 20:13:38,872 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:13:38,872 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:13:38,873 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:13:38,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:13:38,877 INFO L82 PathProgramCache]: Analyzing trace with hash -402483300, now seen corresponding path program 1 times [2021-05-02 20:13:38,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:13:38,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756543630] [2021-05-02 20:13:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:13:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 20:13:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 20:13:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-02 20:13:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-02 20:13:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-05-02 20:13:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-02 20:13:39,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:13:39,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756543630] [2021-05-02 20:13:39,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756543630] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 20:13:39,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 20:13:39,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 20:13:39,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690460116] [2021-05-02 20:13:39,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 20:13:39,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:13:39,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 20:13:39,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:13:39,136 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-02 20:13:39,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:13:39,203 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-05-02 20:13:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 20:13:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2021-05-02 20:13:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:13:39,211 INFO L225 Difference]: With dead ends: 34 [2021-05-02 20:13:39,211 INFO L226 Difference]: Without dead ends: 29 [2021-05-02 20:13:39,213 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:13:39,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-02 20:13:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-05-02 20:13:39,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 20:13:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-05-02 20:13:39,241 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 34 [2021-05-02 20:13:39,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:13:39,241 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-05-02 20:13:39,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-02 20:13:39,241 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2021-05-02 20:13:39,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-02 20:13:39,243 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:13:39,243 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:13:39,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 20:13:39,243 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:13:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:13:39,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1131459816, now seen corresponding path program 1 times [2021-05-02 20:13:39,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:13:39,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535209301] [2021-05-02 20:13:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:13:39,278 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:13:39,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261789379] [2021-05-02 20:13:39,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:39,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-02 20:13:39,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:13:39,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 20:13:39,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:13:39,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535209301] [2021-05-02 20:13:39,697 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:13:39,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261789379] [2021-05-02 20:13:39,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261789379] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:13:39,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:13:39,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 20:13:39,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282612675] [2021-05-02 20:13:39,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 20:13:39,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:13:39,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 20:13:39,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-05-02 20:13:39,699 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-05-02 20:13:39,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:13:39,843 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2021-05-02 20:13:39,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-02 20:13:39,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 35 [2021-05-02 20:13:39,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:13:39,844 INFO L225 Difference]: With dead ends: 42 [2021-05-02 20:13:39,845 INFO L226 Difference]: Without dead ends: 41 [2021-05-02 20:13:39,845 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 110.3ms TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-05-02 20:13:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-05-02 20:13:39,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-05-02 20:13:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 20:13:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2021-05-02 20:13:39,850 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 35 [2021-05-02 20:13:39,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:13:39,851 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2021-05-02 20:13:39,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-05-02 20:13:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-05-02 20:13:39,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-02 20:13:39,851 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:13:39,852 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:13:40,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 20:13:40,071 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:13:40,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:13:40,071 INFO L82 PathProgramCache]: Analyzing trace with hash -305154333, now seen corresponding path program 1 times [2021-05-02 20:13:40,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:13:40,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180371266] [2021-05-02 20:13:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:13:40,080 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:13:40,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111466231] [2021-05-02 20:13:40,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:40,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-02 20:13:40,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:13:40,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-02 20:13:40,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:13:40,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180371266] [2021-05-02 20:13:40,317 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:13:40,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111466231] [2021-05-02 20:13:40,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111466231] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:13:40,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:13:40,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-05-02 20:13:40,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963682293] [2021-05-02 20:13:40,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-02 20:13:40,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:13:40,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-02 20:13:40,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-05-02 20:13:40,318 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-02 20:13:40,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:13:40,504 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2021-05-02 20:13:40,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-02 20:13:40,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2021-05-02 20:13:40,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:13:40,505 INFO L225 Difference]: With dead ends: 55 [2021-05-02 20:13:40,505 INFO L226 Difference]: Without dead ends: 54 [2021-05-02 20:13:40,506 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 99.0ms TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-05-02 20:13:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-05-02 20:13:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2021-05-02 20:13:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 20:13:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-05-02 20:13:40,509 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 37 [2021-05-02 20:13:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:13:40,509 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-05-02 20:13:40,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-02 20:13:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-05-02 20:13:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-02 20:13:40,510 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:13:40,511 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-05-02 20:13:40,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:40,721 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:13:40,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:13:40,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1858557484, now seen corresponding path program 1 times [2021-05-02 20:13:40,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:13:40,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143893130] [2021-05-02 20:13:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:13:40,730 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:13:40,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053053408] [2021-05-02 20:13:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:40,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2021-05-02 20:13:40,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:13:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-02 20:13:40,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:13:40,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143893130] [2021-05-02 20:13:40,824 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:13:40,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053053408] [2021-05-02 20:13:40,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053053408] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 20:13:40,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 20:13:40,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 20:13:40,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330570150] [2021-05-02 20:13:40,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 20:13:40,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:13:40,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 20:13:40,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:13:40,825 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-05-02 20:13:40,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:13:40,835 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2021-05-02 20:13:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 20:13:40,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2021-05-02 20:13:40,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:13:40,836 INFO L225 Difference]: With dead ends: 42 [2021-05-02 20:13:40,836 INFO L226 Difference]: Without dead ends: 39 [2021-05-02 20:13:40,836 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:13:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-02 20:13:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-05-02 20:13:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 20:13:40,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-05-02 20:13:40,840 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 43 [2021-05-02 20:13:40,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:13:40,840 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-05-02 20:13:40,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-05-02 20:13:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-05-02 20:13:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-05-02 20:13:40,841 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:13:40,841 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-05-02 20:13:41,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:41,046 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:13:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:13:41,046 INFO L82 PathProgramCache]: Analyzing trace with hash 270500047, now seen corresponding path program 1 times [2021-05-02 20:13:41,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:13:41,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365491538] [2021-05-02 20:13:41,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:13:41,053 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:13:41,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883946741] [2021-05-02 20:13:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:13:41,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-02 20:13:41,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:13:41,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,767 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 35 [2021-05-02 20:13:41,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,886 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:13:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-05-02 20:13:41,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:13:41,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365491538] [2021-05-02 20:13:41,980 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:13:41,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883946741] [2021-05-02 20:13:41,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883946741] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:13:41,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:13:41,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-05-02 20:13:41,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127034344] [2021-05-02 20:13:41,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 20:13:41,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:13:41,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 20:13:41,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-05-02 20:13:41,982 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-05-02 20:13:42,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:13:42,343 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-05-02 20:13:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-02 20:13:42,344 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 45 [2021-05-02 20:13:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:13:42,344 INFO L225 Difference]: With dead ends: 38 [2021-05-02 20:13:42,344 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 20:13:42,344 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 581.5ms TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2021-05-02 20:13:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 20:13:42,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 20:13:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-02 20:13:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 20:13:42,345 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-05-02 20:13:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:13:42,345 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 20:13:42,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-05-02 20:13:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 20:13:42,345 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 20:13:42,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:13:42,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 08:13:42 BasicIcfg [2021-05-02 20:13:42,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 20:13:42,549 INFO L168 Benchmark]: Toolchain (without parser) took 4413.03 ms. Allocated memory was 200.3 MB in the beginning and 244.3 MB in the end (delta: 44.0 MB). Free memory was 165.2 MB in the beginning and 160.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 200.3 MB. Free memory is still 182.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.28 ms. Allocated memory is still 200.3 MB. Free memory was 165.0 MB in the beginning and 183.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L168 Benchmark]: Boogie Preprocessor took 34.38 ms. Allocated memory is still 200.3 MB. Free memory was 183.0 MB in the beginning and 181.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L168 Benchmark]: RCFGBuilder took 376.45 ms. Allocated memory is still 200.3 MB. Free memory was 181.4 MB in the beginning and 165.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L168 Benchmark]: IcfgTransformer took 20.70 ms. Allocated memory is still 200.3 MB. Free memory was 165.7 MB in the beginning and 164.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L168 Benchmark]: TraceAbstraction took 3746.86 ms. Allocated memory was 200.3 MB in the beginning and 244.3 MB in the end (delta: 44.0 MB). Free memory was 163.6 MB in the beginning and 160.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. [2021-05-02 20:13:42,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 200.3 MB. Free memory is still 182.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 228.28 ms. Allocated memory is still 200.3 MB. Free memory was 165.0 MB in the beginning and 183.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.38 ms. Allocated memory is still 200.3 MB. Free memory was 183.0 MB in the beginning and 181.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 376.45 ms. Allocated memory is still 200.3 MB. Free memory was 181.4 MB in the beginning and 165.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 20.70 ms. Allocated memory is still 200.3 MB. Free memory was 165.7 MB in the beginning and 164.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3746.86 ms. Allocated memory was 200.3 MB in the beginning and 244.3 MB in the end (delta: 44.0 MB). Free memory was 163.6 MB in the beginning and 160.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3697.4ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 14.1ms, AutomataDifference: 796.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 135 SDtfs, 115 SDslu, 390 SDs, 0 SdLazy, 421 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 402.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 829.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.1ms SsaConstructionTime, 134.7ms SatisfiabilityAnalysisTime, 1545.6ms InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 13 NumberOfNonLiveVariables, 508 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 102/132 InterpolantCoveringCapability, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...