/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/ps4-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 10:26:05,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 10:26:05,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 10:26:05,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 10:26:05,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 10:26:05,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 10:26:05,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 10:26:05,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 10:26:05,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 10:26:05,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 10:26:05,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 10:26:05,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 10:26:05,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 10:26:05,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 10:26:05,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 10:26:05,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 10:26:05,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 10:26:05,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 10:26:05,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 10:26:05,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 10:26:05,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 10:26:05,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 10:26:05,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 10:26:05,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 10:26:05,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 10:26:05,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 10:26:05,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 10:26:05,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 10:26:05,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 10:26:05,210 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 10:26:05,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 10:26:05,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 10:26:05,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 10:26:05,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 10:26:05,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 10:26:05,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 10:26:05,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 10:26:05,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 10:26:05,214 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 10:26:05,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 10:26:05,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 10:26:05,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 10:26:05,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 10:26:05,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 10:26:05,504 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 10:26:05,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-05-06 10:26:05,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf155d81/0d9c36b6243b4c7f9471358d624508b3/FLAG65db5da1d [2021-05-06 10:26:05,917 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 10:26:05,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2021-05-06 10:26:05,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf155d81/0d9c36b6243b4c7f9471358d624508b3/FLAG65db5da1d [2021-05-06 10:26:06,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf155d81/0d9c36b6243b4c7f9471358d624508b3 [2021-05-06 10:26:06,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 10:26:06,347 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 10:26:06,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 10:26:06,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 10:26:06,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 10:26:06,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63225502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06, skipping insertion in model container [2021-05-06 10:26:06,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 10:26:06,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 10:26:06,448 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/ps4-ll_valuebound1.c[458,471] [2021-05-06 10:26:06,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 10:26:06,460 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 10:26:06,467 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/ps4-ll_valuebound1.c[458,471] [2021-05-06 10:26:06,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 10:26:06,479 INFO L208 MainTranslator]: Completed translation [2021-05-06 10:26:06,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06 WrapperNode [2021-05-06 10:26:06,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 10:26:06,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 10:26:06,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 10:26:06,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 10:26:06,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 10:26:06,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 10:26:06,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 10:26:06,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 10:26:06,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (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 [2021-05-06 10:26:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 10:26:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 10:26:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 10:26:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 10:26:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 10:26:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 10:26:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 10:26:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 10:26:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 10:26:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 10:26:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 10:26:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 10:26:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 10:26:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 10:26:06,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 10:26:06,817 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 10:26:06,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 10:26:06 BoogieIcfgContainer [2021-05-06 10:26:06,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 10:26:06,818 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 10:26:06,819 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 10:26:06,819 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 10:26:06,821 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 10:26:06" (1/1) ... [2021-05-06 10:26:06,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 10:26:06 BasicIcfg [2021-05-06 10:26:06,838 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 10:26:06,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 10:26:06,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 10:26:06,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 10:26:06,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 10:26:06" (1/4) ... [2021-05-06 10:26:06,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563dff56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 10:26:06, skipping insertion in model container [2021-05-06 10:26:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 10:26:06" (2/4) ... [2021-05-06 10:26:06,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563dff56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 10:26:06, skipping insertion in model container [2021-05-06 10:26:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 10:26:06" (3/4) ... [2021-05-06 10:26:06,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563dff56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 10:26:06, skipping insertion in model container [2021-05-06 10:26:06,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 10:26:06" (4/4) ... [2021-05-06 10:26:06,848 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.cJordan [2021-05-06 10:26:06,855 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 10:26:06,858 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 10:26:06,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 10:26:06,880 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 10:26:06,880 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 10:26:06,880 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 10:26:06,880 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 10:26:06,880 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 10:26:06,880 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 10:26:06,880 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 10:26:06,880 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 10:26:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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) [2021-05-06 10:26:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-06 10:26:06,893 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:26:06,894 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 10:26:06,894 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:26:06,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:26:06,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1885409022, now seen corresponding path program 1 times [2021-05-06 10:26:06,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:26:06,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126751036] [2021-05-06 10:26:06,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:26:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:26:07,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 10:26:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:26:07,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-06 10:26:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:26:07,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 10:26:07,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:26:07,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126751036] [2021-05-06 10:26:07,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126751036] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 10:26:07,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 10:26:07,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 10:26:07,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944016529] [2021-05-06 10:26:07,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 10:26:07,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:26:07,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 10:26:07,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 10:26:07,035 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-06 10:26:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:26:07,083 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2021-05-06 10:26:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 10:26:07,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-05-06 10:26:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:26:07,089 INFO L225 Difference]: With dead ends: 28 [2021-05-06 10:26:07,089 INFO L226 Difference]: Without dead ends: 23 [2021-05-06 10:26:07,090 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 10:26:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-06 10:26:07,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-05-06 10:26:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2021-05-06 10:26:07,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-05-06 10:26:07,110 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2021-05-06 10:26:07,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:26:07,111 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-05-06 10:26:07,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-06 10:26:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-05-06 10:26:07,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-06 10:26:07,111 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:26:07,111 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 10:26:07,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 10:26:07,112 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:26:07,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:26:07,112 INFO L82 PathProgramCache]: Analyzing trace with hash 603980644, now seen corresponding path program 1 times [2021-05-06 10:26:07,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:26:07,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91380371] [2021-05-06 10:26:07,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:26:07,124 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:26:07,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534979226] [2021-05-06 10:26:07,137 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 [2021-05-06 10:26:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:26:07,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-06 10:26:07,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:26:07,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 10:26:07,306 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:26:07,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91380371] [2021-05-06 10:26:07,307 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:26:07,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534979226] [2021-05-06 10:26:07,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534979226] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 10:26:07,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 10:26:07,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 10:26:07,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303676473] [2021-05-06 10:26:07,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 10:26:07,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:26:07,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 10:26:07,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 10:26:07,311 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-06 10:26:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:26:07,354 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-05-06 10:26:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 10:26:07,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-05-06 10:26:07,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:26:07,356 INFO L225 Difference]: With dead ends: 32 [2021-05-06 10:26:07,357 INFO L226 Difference]: Without dead ends: 30 [2021-05-06 10:26:07,359 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-06 10:26:07,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-06 10:26:07,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-06 10:26:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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) [2021-05-06 10:26:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-05-06 10:26:07,370 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2021-05-06 10:26:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:26:07,372 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-05-06 10:26:07,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-05-06 10:26:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-05-06 10:26:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-06 10:26:07,374 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:26:07,374 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, 1] [2021-05-06 10:26:07,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-06 10:26:07,591 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:26:07,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:26:07,592 INFO L82 PathProgramCache]: Analyzing trace with hash -169450186, now seen corresponding path program 1 times [2021-05-06 10:26:07,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:26:07,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71539667] [2021-05-06 10:26:07,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:26:07,601 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:26:07,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39566715] [2021-05-06 10:26:07,602 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 [2021-05-06 10:26:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:26:07,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-06 10:26:07,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:26:07,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 10:26:07,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:26:07,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71539667] [2021-05-06 10:26:07,794 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:26:07,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39566715] [2021-05-06 10:26:07,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39566715] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 10:26:07,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 10:26:07,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-05-06 10:26:07,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640880161] [2021-05-06 10:26:07,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 10:26:07,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:26:07,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 10:26:07,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-06 10:26:07,795 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-06 10:26:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:26:07,828 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-05-06 10:26:07,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 10:26:07,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2021-05-06 10:26:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:26:07,829 INFO L225 Difference]: With dead ends: 39 [2021-05-06 10:26:07,829 INFO L226 Difference]: Without dead ends: 38 [2021-05-06 10:26:07,829 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-05-06 10:26:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-06 10:26:07,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-05-06 10:26:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 10:26:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2021-05-06 10:26:07,833 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 24 [2021-05-06 10:26:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:26:07,833 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2021-05-06 10:26:07,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-06 10:26:07,833 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2021-05-06 10:26:07,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-06 10:26:07,834 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:26:07,834 INFO L523 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 10:26:08,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:26:08,051 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:26:08,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:26:08,052 INFO L82 PathProgramCache]: Analyzing trace with hash -434891502, now seen corresponding path program 1 times [2021-05-06 10:26:08,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:26:08,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856840874] [2021-05-06 10:26:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:26:08,069 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:26:08,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509799131] [2021-05-06 10:26:08,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:26:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 10:26:08,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-06 10:26:08,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:26:08,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 10:26:08,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:26:08,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856840874] [2021-05-06 10:26:08,225 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:26:08,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509799131] [2021-05-06 10:26:08,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509799131] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 10:26:08,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 10:26:08,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-05-06 10:26:08,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74889620] [2021-05-06 10:26:08,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 10:26:08,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:26:08,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 10:26:08,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-06 10:26:08,226 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-06 10:26:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:26:08,305 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-05-06 10:26:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 10:26:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2021-05-06 10:26:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:26:08,306 INFO L225 Difference]: With dead ends: 42 [2021-05-06 10:26:08,306 INFO L226 Difference]: Without dead ends: 37 [2021-05-06 10:26:08,307 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 64.1ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-05-06 10:26:08,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-05-06 10:26:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-05-06 10:26:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 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) [2021-05-06 10:26:08,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-05-06 10:26:08,310 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 30 [2021-05-06 10:26:08,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:26:08,310 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-05-06 10:26:08,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-06 10:26:08,310 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-05-06 10:26:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-06 10:26:08,312 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 10:26:08,312 INFO L523 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 10:26:08,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:26:08,521 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 10:26:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 10:26:08,521 INFO L82 PathProgramCache]: Analyzing trace with hash -570969308, now seen corresponding path program 2 times [2021-05-06 10:26:08,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 10:26:08,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288006745] [2021-05-06 10:26:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 10:26:08,541 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 10:26:08,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350152761] [2021-05-06 10:26:08,541 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 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 [2021-05-06 10:26:08,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-06 10:26:08,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-06 10:26:08,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-06 10:26:08,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 10:26:08,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,680 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 10:26:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 10:26:08,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 10:26:08,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288006745] [2021-05-06 10:26:08,700 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 10:26:08,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350152761] [2021-05-06 10:26:08,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350152761] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 10:26:08,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 10:26:08,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-06 10:26:08,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162595231] [2021-05-06 10:26:08,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 10:26:08,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 10:26:08,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 10:26:08,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-06 10:26:08,701 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-06 10:26:08,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 10:26:08,720 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2021-05-06 10:26:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-06 10:26:08,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2021-05-06 10:26:08,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 10:26:08,721 INFO L225 Difference]: With dead ends: 26 [2021-05-06 10:26:08,721 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 10:26:08,721 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.0ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-05-06 10:26:08,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 10:26:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 10:26:08,722 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) [2021-05-06 10:26:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 10:26:08,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-05-06 10:26:08,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 10:26:08,722 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 10:26:08,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-05-06 10:26:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 10:26:08,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 10:26:08,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 10:26:08,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 10:26:08 BasicIcfg [2021-05-06 10:26:08,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 10:26:08,946 INFO L168 Benchmark]: Toolchain (without parser) took 2597.23 ms. Allocated memory was 205.5 MB in the beginning and 263.2 MB in the end (delta: 57.7 MB). Free memory was 170.7 MB in the beginning and 200.6 MB in the end (delta: -29.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2021-05-06 10:26:08,946 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 205.5 MB. Free memory is still 187.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 10:26:08,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.25 ms. Allocated memory is still 205.5 MB. Free memory was 170.5 MB in the beginning and 160.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-06 10:26:08,946 INFO L168 Benchmark]: Boogie Preprocessor took 66.24 ms. Allocated memory is still 205.5 MB. Free memory was 160.7 MB in the beginning and 188.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 8.0 GB. [2021-05-06 10:26:08,946 INFO L168 Benchmark]: RCFGBuilder took 271.54 ms. Allocated memory is still 205.5 MB. Free memory was 188.5 MB in the beginning and 174.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 10:26:08,946 INFO L168 Benchmark]: IcfgTransformer took 19.64 ms. Allocated memory is still 205.5 MB. Free memory was 174.3 MB in the beginning and 173.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 10:26:08,947 INFO L168 Benchmark]: TraceAbstraction took 2104.69 ms. Allocated memory was 205.5 MB in the beginning and 263.2 MB in the end (delta: 57.7 MB). Free memory was 172.8 MB in the beginning and 200.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2021-05-06 10:26:08,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 205.5 MB. Free memory is still 187.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 129.25 ms. Allocated memory is still 205.5 MB. Free memory was 170.5 MB in the beginning and 160.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.24 ms. Allocated memory is still 205.5 MB. Free memory was 160.7 MB in the beginning and 188.5 MB in the end (delta: -27.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 271.54 ms. Allocated memory is still 205.5 MB. Free memory was 188.5 MB in the beginning and 174.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 19.64 ms. Allocated memory is still 205.5 MB. Free memory was 174.3 MB in the beginning and 173.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2104.69 ms. Allocated memory was 205.5 MB in the beginning and 263.2 MB in the end (delta: 57.7 MB). Free memory was 172.8 MB in the beginning and 200.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2062.6ms, OverallIterations: 5, TraceHistogramMax: 3, EmptinessCheckTime: 11.3ms, AutomataDifference: 247.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 119 SDtfs, 37 SDslu, 314 SDs, 0 SdLazy, 120 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 152.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 28.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.7ms SsaConstructionTime, 89.6ms SatisfiabilityAnalysisTime, 495.5ms InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 326 SizeOfPredicates, 6 NumberOfNonLiveVariables, 486 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 25/30 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...