/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/geo2-ll_valuebound10.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 20:50:53,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 20:50:53,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 20:50:53,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 20:50:53,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 20:50:53,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 20:50:53,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 20:50:53,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 20:50:53,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 20:50:53,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 20:50:53,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 20:50:53,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 20:50:53,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 20:50:53,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 20:50:53,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 20:50:53,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 20:50:53,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 20:50:53,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 20:50:53,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 20:50:53,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 20:50:53,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 20:50:53,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 20:50:53,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 20:50:53,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 20:50:53,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 20:50:53,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 20:50:53,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 20:50:53,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 20:50:53,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 20:50:53,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 20:50:53,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 20:50:53,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 20:50:53,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 20:50:53,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 20:50:53,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 20:50:53,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 20:50:53,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 20:50:53,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 20:50:53,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 20:50:53,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 20:50:53,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 20:50:53,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 20:50:53,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 20:50:53,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 20:50:53,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 20:50:53,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 20:50:53,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 20:50:53,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 20:50:53,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 20:50:53,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 20:50:53,371 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 20:50:53,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 20:50:53,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 20:50:53,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 20:50:53,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 20:50:53,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 20:50:53,627 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 20:50:53,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo2-ll_valuebound10.c [2021-05-02 20:50:53,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fcf0d1b1/5d4be83b45b448feab145fb576864561/FLAG17dcaf8a0 [2021-05-02 20:50:53,992 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 20:50:53,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo2-ll_valuebound10.c [2021-05-02 20:50:54,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fcf0d1b1/5d4be83b45b448feab145fb576864561/FLAG17dcaf8a0 [2021-05-02 20:50:54,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fcf0d1b1/5d4be83b45b448feab145fb576864561 [2021-05-02 20:50:54,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 20:50:54,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 20:50:54,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 20:50:54,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 20:50:54,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 20:50:54,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7798eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54, skipping insertion in model container [2021-05-02 20:50:54,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 20:50:54,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 20:50:54,537 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/geo2-ll_valuebound10.c[525,538] [2021-05-02 20:50:54,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 20:50:54,555 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 20:50:54,562 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/geo2-ll_valuebound10.c[525,538] [2021-05-02 20:50:54,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 20:50:54,574 INFO L208 MainTranslator]: Completed translation [2021-05-02 20:50:54,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54 WrapperNode [2021-05-02 20:50:54,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 20:50:54,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 20:50:54,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 20:50:54,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 20:50:54,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 20:50:54,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 20:50:54,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 20:50:54,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 20:50:54,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (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 20:50:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 20:50:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 20:50:54,702 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 20:50:54,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 20:50:54,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 20:50:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 20:50:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 20:50:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 20:50:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 20:50:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 20:50:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-02 20:50:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 20:50:54,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 20:50:54,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 20:50:54,856 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-02 20:50:54,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:50:54 BoogieIcfgContainer [2021-05-02 20:50:54,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 20:50:54,857 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 20:50:54,857 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 20:50:54,858 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 20:50:54,859 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:50:54" (1/1) ... [2021-05-02 20:50:54,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 08:50:54 BasicIcfg [2021-05-02 20:50:54,870 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 20:50:54,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 20:50:54,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 20:50:54,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 20:50:54,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 08:50:54" (1/4) ... [2021-05-02 20:50:54,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53887348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 08:50:54, skipping insertion in model container [2021-05-02 20:50:54,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 08:50:54" (2/4) ... [2021-05-02 20:50:54,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53887348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 08:50:54, skipping insertion in model container [2021-05-02 20:50:54,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 08:50:54" (3/4) ... [2021-05-02 20:50:54,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53887348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 08:50:54, skipping insertion in model container [2021-05-02 20:50:54,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 08:50:54" (4/4) ... [2021-05-02 20:50:54,875 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound10.cJordan [2021-05-02 20:50:54,878 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 20:50:54,881 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 20:50:54,890 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 20:50:54,902 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 20:50:54,902 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 20:50:54,902 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 20:50:54,902 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 20:50:54,902 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 20:50:54,902 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 20:50:54,903 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 20:50:54,903 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 20:50:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 20:50:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-02 20:50:54,915 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:50:54,916 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:50:54,916 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:50:54,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:50:54,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1141493127, now seen corresponding path program 1 times [2021-05-02 20:50:54,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:50:54,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877700677] [2021-05-02 20:50:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:50:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:50:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 20:50:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:50:55,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-02 20:50:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:50:55,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-02 20:50:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:50:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 20:50:55,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:50:55,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877700677] [2021-05-02 20:50:55,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877700677] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 20:50:55,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 20:50:55,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 20:50:55,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402429698] [2021-05-02 20:50:55,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 20:50:55,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:50:55,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 20:50:55,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:50:55,145 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:50:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:50:55,207 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-05-02 20:50:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 20:50:55,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-05-02 20:50:55,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:50:55,215 INFO L225 Difference]: With dead ends: 29 [2021-05-02 20:50:55,216 INFO L226 Difference]: Without dead ends: 24 [2021-05-02 20:50:55,217 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 20:50:55,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-02 20:50:55,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-02 20:50:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-02 20:50:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2021-05-02 20:50:55,244 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 23 [2021-05-02 20:50:55,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:50:55,244 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2021-05-02 20:50:55,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:50:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2021-05-02 20:50:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-02 20:50:55,246 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:50:55,246 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:50:55,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 20:50:55,246 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:50:55,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:50:55,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1441395781, now seen corresponding path program 1 times [2021-05-02 20:50:55,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:50:55,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441005098] [2021-05-02 20:50:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:50:55,279 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:50:55,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143810981] [2021-05-02 20:50:55,279 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 20:50:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:50:55,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 20:50:55,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:50:55,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 20:50:55,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:50:55,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441005098] [2021-05-02 20:50:55,492 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:50:55,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143810981] [2021-05-02 20:50:55,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143810981] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:50:55,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:50:55,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-02 20:50:55,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529918019] [2021-05-02 20:50:55,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-02 20:50:55,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:50:55,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-02 20:50:55,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-02 20:50:55,494 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:50:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:50:55,539 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-05-02 20:50:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-02 20:50:55,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-05-02 20:50:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:50:55,540 INFO L225 Difference]: With dead ends: 32 [2021-05-02 20:50:55,540 INFO L226 Difference]: Without dead ends: 31 [2021-05-02 20:50:55,541 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 39.8ms TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-05-02 20:50:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-05-02 20:50:55,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-05-02 20:50:55,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-02 20:50:55,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-05-02 20:50:55,545 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 23 [2021-05-02 20:50:55,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:50:55,545 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-05-02 20:50:55,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 20:50:55,546 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-05-02 20:50:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-02 20:50:55,546 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:50:55,546 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:50:55,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-02 20:50:55,757 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:50:55,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:50:55,757 INFO L82 PathProgramCache]: Analyzing trace with hash -2044378429, now seen corresponding path program 1 times [2021-05-02 20:50:55,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:50:55,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310084030] [2021-05-02 20:50:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:50:55,766 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:50:55,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172171918] [2021-05-02 20:50:55,767 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 20:50:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 20:50:55,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-02 20:50:55,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:50:55,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 20:50:55,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:50:55,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310084030] [2021-05-02 20:50:55,943 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:50:55,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172171918] [2021-05-02 20:50:55,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172171918] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:50:55,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:50:55,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-05-02 20:50:55,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796272738] [2021-05-02 20:50:55,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-02 20:50:55,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:50:55,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-02 20:50:55,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-05-02 20:50:55,945 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 20:50:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:50:56,017 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2021-05-02 20:50:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 20:50:56,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2021-05-02 20:50:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:50:56,021 INFO L225 Difference]: With dead ends: 39 [2021-05-02 20:50:56,021 INFO L226 Difference]: Without dead ends: 38 [2021-05-02 20:50:56,021 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 51.0ms TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-02 20:50:56,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-02 20:50:56,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-05-02 20:50:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-02 20:50:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2021-05-02 20:50:56,029 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 30 [2021-05-02 20:50:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:50:56,029 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2021-05-02 20:50:56,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-02 20:50:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2021-05-02 20:50:56,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-02 20:50:56,031 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:50:56,031 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:50:56,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:50:56,241 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:50:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:50:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1793299131, now seen corresponding path program 2 times [2021-05-02 20:50:56,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:50:56,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824282273] [2021-05-02 20:50:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:50:56,252 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:50:56,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191725114] [2021-05-02 20:50:56,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 20:50:56,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-02 20:50:56,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 20:50:56,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 28 conjunts are in the unsatisfiable core [2021-05-02 20:50:56,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:50:56,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:56,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:56,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:56,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:56,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:56,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,465 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 15 [2021-05-02 20:50:58,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,687 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:50:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-02 20:50:58,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:50:58,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824282273] [2021-05-02 20:50:58,802 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:50:58,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191725114] [2021-05-02 20:50:58,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191725114] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:50:58,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:50:58,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-05-02 20:50:58,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801549186] [2021-05-02 20:50:58,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 20:50:58,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:50:58,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 20:50:58,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-05-02 20:50:58,803 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 20:50:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:50:59,677 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2021-05-02 20:50:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-02 20:50:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2021-05-02 20:50:59,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:50:59,678 INFO L225 Difference]: With dead ends: 46 [2021-05-02 20:50:59,678 INFO L226 Difference]: Without dead ends: 45 [2021-05-02 20:50:59,678 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2235.3ms TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-05-02 20:50:59,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-05-02 20:50:59,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-05-02 20:50:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-02 20:50:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2021-05-02 20:50:59,681 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 37 [2021-05-02 20:50:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:50:59,681 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2021-05-02 20:50:59,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 5 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2021-05-02 20:50:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2021-05-02 20:50:59,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-02 20:50:59,682 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 20:50:59,682 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 20:50:59,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:50:59,885 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 20:50:59,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 20:50:59,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1935793091, now seen corresponding path program 3 times [2021-05-02 20:50:59,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 20:50:59,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228454185] [2021-05-02 20:50:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 20:50:59,894 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-02 20:50:59,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292150799] [2021-05-02 20:50:59,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 20:50:59,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-05-02 20:50:59,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-02 20:50:59,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 20:50:59,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 20:51:02,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:51:02,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:51:02,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 20:51:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-05-02 20:51:02,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 20:51:02,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228454185] [2021-05-02 20:51:02,227 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-02 20:51:02,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292150799] [2021-05-02 20:51:02,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292150799] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 20:51:02,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-02 20:51:02,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-02 20:51:02,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273175563] [2021-05-02 20:51:02,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-02 20:51:02,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 20:51:02,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-02 20:51:02,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=42, Unknown=1, NotChecked=0, Total=56 [2021-05-02 20:51:02,229 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-05-02 20:51:21,482 WARN L205 SmtUtils]: Spent 16.97 s on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2021-05-02 20:51:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 20:51:23,537 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2021-05-02 20:51:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-02 20:51:23,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2021-05-02 20:51:23,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 20:51:23,538 INFO L225 Difference]: With dead ends: 46 [2021-05-02 20:51:23,538 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 20:51:23,538 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 19162.0ms TimeCoverageRelationStatistics Valid=34, Invalid=97, Unknown=1, NotChecked=0, Total=132 [2021-05-02 20:51:23,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 20:51:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 20:51:23,538 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 20:51:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 20:51:23,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2021-05-02 20:51:23,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 20:51:23,538 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 20:51:23,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-05-02 20:51:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 20:51:23,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 20:51:23,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 20:51:23,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 08:51:23 BasicIcfg [2021-05-02 20:51:23,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 20:51:23,743 INFO L168 Benchmark]: Toolchain (without parser) took 29321.26 ms. Allocated memory was 179.3 MB in the beginning and 216.0 MB in the end (delta: 36.7 MB). Free memory was 145.0 MB in the beginning and 152.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2021-05-02 20:51:23,743 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 179.3 MB. Free memory is still 161.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 20:51:23,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.70 ms. Allocated memory is still 179.3 MB. Free memory was 144.8 MB in the beginning and 135.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-02 20:51:23,743 INFO L168 Benchmark]: Boogie Preprocessor took 20.23 ms. Allocated memory is still 179.3 MB. Free memory was 135.2 MB in the beginning and 133.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 20:51:23,744 INFO L168 Benchmark]: RCFGBuilder took 260.62 ms. Allocated memory is still 179.3 MB. Free memory was 133.6 MB in the beginning and 149.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. [2021-05-02 20:51:23,744 INFO L168 Benchmark]: IcfgTransformer took 13.06 ms. Allocated memory is still 179.3 MB. Free memory was 149.8 MB in the beginning and 148.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-02 20:51:23,744 INFO L168 Benchmark]: TraceAbstraction took 28871.23 ms. Allocated memory was 179.3 MB in the beginning and 216.0 MB in the end (delta: 36.7 MB). Free memory was 147.7 MB in the beginning and 152.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 8.0 GB. [2021-05-02 20:51:23,744 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 179.3 MB. Free memory is still 161.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 149.70 ms. Allocated memory is still 179.3 MB. Free memory was 144.8 MB in the beginning and 135.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.23 ms. Allocated memory is still 179.3 MB. Free memory was 135.2 MB in the beginning and 133.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 260.62 ms. Allocated memory is still 179.3 MB. Free memory was 133.6 MB in the beginning and 149.8 MB in the end (delta: -16.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 8.0 GB. * IcfgTransformer took 13.06 ms. Allocated memory is still 179.3 MB. Free memory was 149.8 MB in the beginning and 148.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 28871.23 ms. Allocated memory was 179.3 MB in the beginning and 216.0 MB in the end (delta: 36.7 MB). Free memory was 147.7 MB in the beginning and 152.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28839.0ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 10.8ms, AutomataDifference: 22390.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 114 SDtfs, 83 SDslu, 456 SDs, 0 SdLazy, 290 SolverSat, 27 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5159.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 21526.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=4, 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: 31.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.3ms SsaConstructionTime, 109.3ms SatisfiabilityAnalysisTime, 5203.3ms InterpolantComputationTime, 157 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 653 SizeOfPredicates, 11 NumberOfNonLiveVariables, 528 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 52/72 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...