/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loop-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:24:52,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:24:52,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:24:52,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:24:52,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:24:52,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:24:52,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:24:52,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:24:52,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:24:52,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:24:52,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:24:52,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:24:52,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:24:52,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:24:52,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:24:52,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:24:53,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:24:53,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:24:53,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:24:53,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:24:53,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:24:53,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:24:53,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:24:53,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:24:53,029 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:24:53,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:24:53,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:24:53,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:24:53,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:24:53,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:24:53,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:24:53,031 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:24:53,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:24:53,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:24:53,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:24:53,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:24:53,032 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:24:53,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:24:53,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:24:53,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:24:53,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:24:53,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:24:53,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:24:53,033 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:24:53,034 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:24:53,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:24:53,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:24:53,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:24:53,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:24:53,447 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:24:53,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2021-02-22 02:24:53,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931cbdd48/1802d2ee9f0a4744a92c7bd15cdb418a/FLAG1d1be246a [2021-02-22 02:24:54,188 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:24:54,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2021-02-22 02:24:54,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931cbdd48/1802d2ee9f0a4744a92c7bd15cdb418a/FLAG1d1be246a [2021-02-22 02:24:54,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931cbdd48/1802d2ee9f0a4744a92c7bd15cdb418a [2021-02-22 02:24:54,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:24:54,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:24:54,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:24:54,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:24:54,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:24:54,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ad6e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54, skipping insertion in model container [2021-02-22 02:24:54,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:24:54,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:24:54,865 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c[364,377] [2021-02-22 02:24:54,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:24:54,896 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:24:54,914 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c[364,377] [2021-02-22 02:24:54,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:24:54,943 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:24:54,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54 WrapperNode [2021-02-22 02:24:54,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:24:54,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:24:54,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:24:54,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:24:54,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:54,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:55,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (1/1) ... [2021-02-22 02:24:55,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:24:55,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:24:55,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:24:55,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:24:55,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (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 [2021-02-22 02:24:55,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:24:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:24:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:24:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 02:24:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:24:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:24:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:24:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:24:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:24:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-22 02:24:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 02:24:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:24:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:24:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:24:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:24:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:24:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:24:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:24:55,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:24:55,581 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:24:55,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:24:55 BoogieIcfgContainer [2021-02-22 02:24:55,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:24:55,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:24:55,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:24:55,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:24:55,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:24:54" (1/3) ... [2021-02-22 02:24:55,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387325c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:24:55, skipping insertion in model container [2021-02-22 02:24:55,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:24:54" (2/3) ... [2021-02-22 02:24:55,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387325c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:24:55, skipping insertion in model container [2021-02-22 02:24:55,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:24:55" (3/3) ... [2021-02-22 02:24:55,622 INFO L111 eAbstractionObserver]: Analyzing ICFG eq2.c [2021-02-22 02:24:55,638 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:24:55,647 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:24:55,670 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:24:55,697 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:24:55,697 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:24:55,698 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:24:55,698 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:24:55,698 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:24:55,698 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:24:55,698 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:24:55,699 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:24:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2021-02-22 02:24:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-22 02:24:55,728 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:24:55,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:24:55,730 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:24:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:24:55,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1173718676, now seen corresponding path program 1 times [2021-02-22 02:24:55,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:24:55,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90873856] [2021-02-22 02:24:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:24:55,841 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:24:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:24:55,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:55,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:55,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:55,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:56,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:24:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:24:56,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:24:56,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90873856] [2021-02-22 02:24:56,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:24:56,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-22 02:24:56,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252920429] [2021-02-22 02:24:56,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-22 02:24:56,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:24:56,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-22 02:24:56,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 02:24:56,118 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2021-02-22 02:24:56,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:24:56,301 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-02-22 02:24:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-22 02:24:56,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2021-02-22 02:24:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:24:56,315 INFO L225 Difference]: With dead ends: 57 [2021-02-22 02:24:56,315 INFO L226 Difference]: Without dead ends: 37 [2021-02-22 02:24:56,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-22 02:24:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-02-22 02:24:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-02-22 02:24:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-02-22 02:24:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-02-22 02:24:56,410 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 28 [2021-02-22 02:24:56,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:24:56,411 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-02-22 02:24:56,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-22 02:24:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-02-22 02:24:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-22 02:24:56,415 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:24:56,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:24:56,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:24:56,416 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:24:56,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:24:56,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1639863410, now seen corresponding path program 1 times [2021-02-22 02:24:56,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:24:56,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708953374] [2021-02-22 02:24:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:24:56,430 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:24:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:24:56,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:56,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:56,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:24:56,691 WARN L141 QuantifierPusher]: treesize reduction 19, result has 81.6 percent of original size [2021-02-22 02:24:56,696 WARN L147 QuantifierPusher]: treesize reduction 19, result has 81.6 percent of original size 84 [2021-02-22 02:24:56,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:24:56,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:24:56,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:56,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:24:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:24:56,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:56,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:24:56,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708953374] [2021-02-22 02:24:56,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:24:56,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-22 02:24:56,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876289584] [2021-02-22 02:24:56,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-22 02:24:56,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:24:56,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-22 02:24:56,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-22 02:24:56,865 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 8 states. [2021-02-22 02:24:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:24:57,251 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-02-22 02:24:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 02:24:57,252 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2021-02-22 02:24:57,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:24:57,254 INFO L225 Difference]: With dead ends: 47 [2021-02-22 02:24:57,254 INFO L226 Difference]: Without dead ends: 41 [2021-02-22 02:24:57,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-02-22 02:24:57,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-02-22 02:24:57,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2021-02-22 02:24:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-22 02:24:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-02-22 02:24:57,271 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 29 [2021-02-22 02:24:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:24:57,272 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-02-22 02:24:57,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-22 02:24:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-02-22 02:24:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-22 02:24:57,274 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:24:57,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:24:57,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 02:24:57,275 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:24:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:24:57,276 INFO L82 PathProgramCache]: Analyzing trace with hash 912242294, now seen corresponding path program 1 times [2021-02-22 02:24:57,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:24:57,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080367351] [2021-02-22 02:24:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:24:57,369 WARN L141 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-02-22 02:24:57,383 WARN L147 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size 20 [2021-02-22 02:24:57,391 WARN L141 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size [2021-02-22 02:24:57,394 WARN L147 QuantifierPusher]: treesize reduction 3, result has 87.0 percent of original size 20 [2021-02-22 02:24:57,403 WARN L141 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size [2021-02-22 02:24:57,417 WARN L147 QuantifierPusher]: treesize reduction 9, result has 47.1 percent of original size 8 [2021-02-22 02:24:57,421 WARN L141 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-02-22 02:24:57,425 WARN L147 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size 32 [2021-02-22 02:24:57,428 WARN L141 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size [2021-02-22 02:24:57,429 WARN L147 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size 1 [2021-02-22 02:24:57,431 WARN L141 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size [2021-02-22 02:24:57,431 WARN L147 QuantifierPusher]: treesize reduction 24, result has 4.0 percent of original size 1 [2021-02-22 02:24:57,434 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:24:57,437 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:24:57,440 WARN L141 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-02-22 02:24:57,442 WARN L147 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size 32 [2021-02-22 02:24:57,444 WARN L141 QuantifierPusher]: treesize reduction 20, result has 4.8 percent of original size [2021-02-22 02:24:57,445 WARN L147 QuantifierPusher]: treesize reduction 20, result has 4.8 percent of original size 1 [2021-02-22 02:24:57,447 WARN L141 QuantifierPusher]: treesize reduction 20, result has 4.8 percent of original size [2021-02-22 02:24:57,447 WARN L147 QuantifierPusher]: treesize reduction 20, result has 4.8 percent of original size 1 [2021-02-22 02:24:57,450 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:24:57,452 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:24:57,455 WARN L141 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-02-22 02:24:57,458 WARN L147 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size 32 [2021-02-22 02:24:57,460 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-02-22 02:24:57,463 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size 18 [2021-02-22 02:24:57,466 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size [2021-02-22 02:24:57,468 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.7 percent of original size 18 [2021-02-22 02:24:57,475 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-02-22 02:24:57,478 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-02-22 02:24:57,482 WARN L141 QuantifierPusher]: treesize reduction 10, result has 80.0 percent of original size [2021-02-22 02:24:57,485 WARN L147 QuantifierPusher]: treesize reduction 10, result has 80.0 percent of original size 40 [2021-02-22 02:24:57,487 WARN L141 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size [2021-02-22 02:24:57,488 WARN L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-02-22 02:24:57,490 WARN L141 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size [2021-02-22 02:24:57,490 WARN L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-02-22 02:24:57,494 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 02:24:57,496 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 02:24:57,499 WARN L141 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-02-22 02:24:57,502 WARN L147 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size 32 [2021-02-22 02:24:57,504 WARN L141 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-02-22 02:24:57,507 WARN L147 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size 18 [2021-02-22 02:24:57,509 WARN L141 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-02-22 02:24:57,512 WARN L147 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size 18 [2021-02-22 02:24:57,519 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-02-22 02:24:57,522 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-02-22 02:24:57,526 WARN L141 QuantifierPusher]: treesize reduction 10, result has 80.0 percent of original size [2021-02-22 02:24:57,529 WARN L147 QuantifierPusher]: treesize reduction 10, result has 80.0 percent of original size 40 [2021-02-22 02:24:57,530 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:24:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:24:57,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:57,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:24:57,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:24:57,786 WARN L141 QuantifierPusher]: treesize reduction 20, result has 83.9 percent of original size [2021-02-22 02:24:57,790 WARN L147 QuantifierPusher]: treesize reduction 20, result has 83.9 percent of original size 104 [2021-02-22 02:24:57,909 WARN L141 QuantifierPusher]: treesize reduction 19, result has 81.6 percent of original size [2021-02-22 02:24:57,912 WARN L147 QuantifierPusher]: treesize reduction 19, result has 81.6 percent of original size 84 [2021-02-22 02:24:57,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:24:57,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:24:57,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:57,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:57,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:24:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:24:58,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:24:58,022 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-02-22 02:24:58,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:24:58,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:24:58,030 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size 36 [2021-02-22 02:24:58,032 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-02-22 02:24:58,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:24:58,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:24:58,039 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size 36 [2021-02-22 02:24:58,041 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-02-22 02:24:58,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:24:58,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:24:58,048 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size 36 [2021-02-22 02:24:58,050 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-02-22 02:24:58,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:24:58,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:24:58,058 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size 44 [2021-02-22 02:24:58,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:24:58,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:24:58,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:24:58,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-22 02:24:58,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:24:58,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 02:24:58,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-22 02:24:58,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-22 02:24:58,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:24:58,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 02:24:58,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:24:58,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:24:58,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080367351] [2021-02-22 02:24:58,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:24:58,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-22 02:24:58,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029776510] [2021-02-22 02:24:58,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-22 02:24:58,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:24:58,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-22 02:24:58,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-02-22 02:24:58,298 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 14 states. [2021-02-22 02:24:59,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:24:59,131 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-02-22 02:24:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-22 02:24:59,131 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2021-02-22 02:24:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:24:59,132 INFO L225 Difference]: With dead ends: 41 [2021-02-22 02:24:59,132 INFO L226 Difference]: Without dead ends: 0 [2021-02-22 02:24:59,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2021-02-22 02:24:59,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-22 02:24:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-22 02:24:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-22 02:24:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-22 02:24:59,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-02-22 02:24:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:24:59,135 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-22 02:24:59,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-22 02:24:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-22 02:24:59,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-22 02:24:59,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 02:24:59,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-22 02:24:59,433 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 26 [2021-02-22 02:24:59,653 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 26 [2021-02-22 02:24:59,951 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-22 02:24:59,951 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-22 02:24:59,951 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-22 02:24:59,952 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,952 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,952 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,952 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,952 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,952 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L192 CegarLoopUtils]: At program point L3-6(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L192 CegarLoopUtils]: At program point L3-7(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L192 CegarLoopUtils]: At program point L3-8(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L192 CegarLoopUtils]: At program point L3-9(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L192 CegarLoopUtils]: At program point L3-10(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,953 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,954 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-22 02:24:59,955 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 11 22) the Hoare annotation is: true [2021-02-22 02:24:59,955 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (and (<= main_~y~0 main_~z~0) (<= main_~z~0 main_~y~0) (= main_~x~0 main_~w~0)) [2021-02-22 02:24:59,955 INFO L185 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: (and (= |main_#t~post9| main_~y~0) (<= main_~y~0 main_~z~0) (<= main_~z~0 main_~y~0) (= main_~x~0 main_~w~0)) [2021-02-22 02:24:59,955 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (+ main_~x~0 1))) (and (<= main_~y~0 .cse0) (<= .cse0 main_~y~0) (= main_~x~0 main_~w~0))) [2021-02-22 02:24:59,955 INFO L185 CegarLoopUtils]: At program point L17-2(line 17) the Hoare annotation is: (and (<= main_~z~0 |main_#t~post9|) (<= |main_#t~post9| main_~z~0) (= main_~y~0 (+ |main_#t~post9| 1)) (= main_~x~0 main_~w~0)) [2021-02-22 02:24:59,955 INFO L192 CegarLoopUtils]: At program point L13(line 13) the Hoare annotation is: true [2021-02-22 02:24:59,956 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 11 22) the Hoare annotation is: true [2021-02-22 02:24:59,956 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2021-02-22 02:24:59,956 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-22 02:24:59,956 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (+ main_~z~0 1))) (and (<= .cse0 main_~y~0) (<= main_~y~0 .cse0) (= main_~x~0 main_~w~0))) [2021-02-22 02:24:59,956 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: (let ((.cse0 (+ main_~z~0 1))) (and (<= .cse0 main_~y~0) (<= main_~y~0 .cse0) (= main_~x~0 main_~w~0) (= main_~z~0 |main_#t~post10|))) [2021-02-22 02:24:59,956 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: (let ((.cse0 (+ |main_#t~post10| 1))) (and (= main_~z~0 .cse0) (= main_~x~0 main_~w~0) (<= .cse0 main_~y~0) (<= main_~y~0 .cse0))) [2021-02-22 02:24:59,957 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (let ((.cse3 (= main_~x~0 main_~w~0))) (or (let ((.cse5 (div main_~z~0 4294967296)) (.cse4 (div main_~y~0 4294967296))) (let ((.cse0 (+ main_~x~0 1)) (.cse2 (+ main_~z~0 (* 4294967296 .cse4))) (.cse1 (* 4294967296 .cse5))) (and (<= main_~y~0 .cse0) (<= (+ main_~y~0 .cse1) .cse2) (<= .cse0 main_~y~0) (< .cse2 (+ main_~y~0 .cse1 1)) .cse3 (< .cse4 (+ .cse5 1))))) (and (<= main_~y~0 main_~z~0) (<= main_~z~0 main_~y~0) .cse3))) [2021-02-22 02:24:59,957 INFO L185 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: (= main_~x~0 main_~w~0) [2021-02-22 02:24:59,957 INFO L185 CegarLoopUtils]: At program point L16-3(line 16) the Hoare annotation is: (and (not (= (mod |main_#t~nondet8| 4294967296) 0)) (<= main_~y~0 main_~z~0) (<= main_~z~0 main_~y~0) (= main_~x~0 main_~w~0)) [2021-02-22 02:24:59,957 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-22 02:24:59,958 INFO L185 CegarLoopUtils]: At program point L16-4(lines 16 19) the Hoare annotation is: (and (<= main_~y~0 main_~z~0) (<= main_~z~0 main_~y~0) (= main_~x~0 main_~w~0)) [2021-02-22 02:24:59,958 INFO L185 CegarLoopUtils]: At program point L16-5(lines 16 19) the Hoare annotation is: (let ((.cse3 (= main_~x~0 main_~w~0))) (or (let ((.cse5 (div main_~z~0 4294967296)) (.cse4 (div main_~y~0 4294967296))) (let ((.cse0 (+ main_~x~0 1)) (.cse2 (+ main_~z~0 (* 4294967296 .cse4))) (.cse1 (* 4294967296 .cse5))) (and (<= main_~y~0 .cse0) (<= (+ main_~y~0 .cse1) .cse2) (<= .cse0 main_~y~0) (< .cse2 (+ main_~y~0 .cse1 1)) .cse3 (< .cse4 (+ .cse5 1))))) (and (<= main_~y~0 main_~z~0) (<= main_~z~0 main_~y~0) .cse3))) [2021-02-22 02:24:59,958 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-02-22 02:24:59,958 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: true [2021-02-22 02:24:59,958 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:24:59,958 INFO L185 CegarLoopUtils]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-22 02:24:59,959 INFO L185 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:24:59,959 INFO L192 CegarLoopUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-02-22 02:24:59,959 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-22 02:24:59,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:24:59 BoogieIcfgContainer [2021-02-22 02:24:59,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:24:59,979 INFO L168 Benchmark]: Toolchain (without parser) took 5391.88 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 127.8 MB in the beginning and 72.5 MB in the end (delta: 55.3 MB). Peak memory consumption was 100.5 MB. Max. memory is 8.0 GB. [2021-02-22 02:24:59,980 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:24:59,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.04 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 117.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:24:59,981 INFO L168 Benchmark]: Boogie Preprocessor took 65.65 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 116.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:24:59,982 INFO L168 Benchmark]: RCFGBuilder took 572.89 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 131.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2021-02-22 02:24:59,983 INFO L168 Benchmark]: TraceAbstraction took 4377.49 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 130.6 MB in the beginning and 72.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 103.8 MB. Max. memory is 8.0 GB. [2021-02-22 02:24:59,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 340.04 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 117.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.65 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 116.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 572.89 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 131.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4377.49 ms. Allocated memory was 151.0 MB in the beginning and 184.5 MB in the end (delta: 33.6 MB). Free memory was 130.6 MB in the beginning and 72.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 103.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (y <= z && z <= y) && x == w - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 SDtfs, 115 SDslu, 293 SDs, 0 SdLazy, 257 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 59 PreInvPairs, 75 NumberOfFragments, 337 HoareAnnotationTreeSize, 59 FomulaSimplifications, 967 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 742 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...