/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:22:51,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:22:51,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:22:51,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:22:51,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:22:51,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:22:51,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:22:51,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:22:51,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:22:51,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:22:51,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:22:51,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:22:51,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:22:51,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:22:51,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:22:51,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:22:51,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:22:51,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:22:51,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:22:51,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:22:51,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:22:51,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:22:51,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:22:51,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:22:51,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:22:51,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:22:51,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:22:51,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:22:51,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:22:51,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-24 17:22:51,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:22:51,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:22:51,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:22:51,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:22:51,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:22:51,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:22:51,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:22:51,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:22:51,716 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:22:51,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:22:51,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:22:51,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:22:51,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:22:51,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:22:51,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:22:51,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:22:51,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:22:51,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:22:51,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:22:51,720 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:22:51,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:22:51,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:22:51,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:22:51,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:22:51,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:22:51,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:22:51,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:22:51,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:22:51,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:22:51,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:22:51,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:22:51,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:22:51,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:22:51,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:22:52,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:22:52,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:22:52,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:22:52,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:22:52,201 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:22:52,203 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c [2020-09-24 17:22:52,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9962cd911/900203dafdb94df8842dc66fea385c20/FLAG6fcedbe98 [2020-09-24 17:22:52,841 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:22:52,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt4.c [2020-09-24 17:22:52,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9962cd911/900203dafdb94df8842dc66fea385c20/FLAG6fcedbe98 [2020-09-24 17:22:53,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9962cd911/900203dafdb94df8842dc66fea385c20 [2020-09-24 17:22:53,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:22:53,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:22:53,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:22:53,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:22:53,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:22:53,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53, skipping insertion in model container [2020-09-24 17:22:53,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:22:53,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:22:53,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:22:53,514 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:22:53,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:22:53,560 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:22:53,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53 WrapperNode [2020-09-24 17:22:53,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:22:53,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:22:53,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:22:53,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:22:53,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... [2020-09-24 17:22:53,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:22:53,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:22:53,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:22:53,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:22:53,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 17:22:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:22:53,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:22:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:22:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:22:53,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:22:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:22:53,764 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:22:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:22:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:22:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:22:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:22:53,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:22:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:22:54,066 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:22:54,079 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:22:54,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:22:54 BoogieIcfgContainer [2020-09-24 17:22:54,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:22:54,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:22:54,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:22:54,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:22:54,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:22:53" (1/3) ... [2020-09-24 17:22:54,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e887354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:22:54, skipping insertion in model container [2020-09-24 17:22:54,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:22:53" (2/3) ... [2020-09-24 17:22:54,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e887354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:22:54, skipping insertion in model container [2020-09-24 17:22:54,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:22:54" (3/3) ... [2020-09-24 17:22:54,106 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt4.c [2020-09-24 17:22:54,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:22:54,128 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:22:54,148 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:22:54,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:22:54,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:22:54,175 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:22:54,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:22:54,176 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:22:54,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:22:54,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:22:54,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:22:54,197 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-09-24 17:22:54,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-24 17:22:54,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:54,206 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] [2020-09-24 17:22:54,206 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:54,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:54,213 INFO L82 PathProgramCache]: Analyzing trace with hash 2048298944, now seen corresponding path program 1 times [2020-09-24 17:22:54,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:54,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76959396] [2020-09-24 17:22:54,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:54,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:54,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:54,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 17:22:54,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:54,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-09-24 17:22:54,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:22:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 17:22:54,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:22:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:22:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:55,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:55,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:55,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:22:55,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:55,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:22:55,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:55,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:55,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:55,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:55,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76959396] [2020-09-24 17:22:55,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:22:55,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:22:55,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302320820] [2020-09-24 17:22:55,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:22:55,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:55,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:22:55,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:22:55,212 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 10 states. [2020-09-24 17:22:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:55,885 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2020-09-24 17:22:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 17:22:55,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-09-24 17:22:55,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:55,906 INFO L225 Difference]: With dead ends: 109 [2020-09-24 17:22:55,906 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 17:22:55,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-09-24 17:22:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 17:22:55,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 31. [2020-09-24 17:22:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 17:22:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-09-24 17:22:55,978 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2020-09-24 17:22:55,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:55,979 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-09-24 17:22:55,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:22:55,979 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-09-24 17:22:55,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 17:22:55,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:55,981 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] [2020-09-24 17:22:55,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:22:55,981 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1303654892, now seen corresponding path program 1 times [2020-09-24 17:22:55,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:55,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182749488] [2020-09-24 17:22:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:56,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:56,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:56,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 17:22:56,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:56,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 495 [2020-09-24 17:22:56,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:56,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 17:22:56,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 17:22:56,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 17:22:56,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:56,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:56,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:56,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:56,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:22:56,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:22:56,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:56,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:56,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182749488] [2020-09-24 17:22:56,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:22:56,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 17:22:56,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135297626] [2020-09-24 17:22:56,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 17:22:56,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:56,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 17:22:56,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:22:56,878 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 12 states. [2020-09-24 17:22:57,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:57,466 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2020-09-24 17:22:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 17:22:57,467 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2020-09-24 17:22:57,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:57,469 INFO L225 Difference]: With dead ends: 76 [2020-09-24 17:22:57,469 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 17:22:57,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2020-09-24 17:22:57,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 17:22:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 34. [2020-09-24 17:22:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 17:22:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-09-24 17:22:57,480 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 24 [2020-09-24 17:22:57,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:57,480 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-09-24 17:22:57,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 17:22:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-09-24 17:22:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-24 17:22:57,482 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:57,482 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:22:57,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:22:57,483 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:57,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:57,483 INFO L82 PathProgramCache]: Analyzing trace with hash -132325864, now seen corresponding path program 2 times [2020-09-24 17:22:57,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:57,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874578917] [2020-09-24 17:22:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:57,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:57,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:57,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:58,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 17:22:58,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:22:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-09-24 17:22:58,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:22:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:22:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 17:22:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:58,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:58,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:58,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:22:58,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:22:58,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:58,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:58,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874578917] [2020-09-24 17:22:58,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:22:58,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 17:22:58,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644787255] [2020-09-24 17:22:58,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:22:58,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:58,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:22:58,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:22:58,459 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 5 states. [2020-09-24 17:22:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:22:58,600 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-09-24 17:22:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:22:58,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-09-24 17:22:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:22:58,602 INFO L225 Difference]: With dead ends: 55 [2020-09-24 17:22:58,603 INFO L226 Difference]: Without dead ends: 41 [2020-09-24 17:22:58,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:22:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-24 17:22:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2020-09-24 17:22:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-24 17:22:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-09-24 17:22:58,612 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 28 [2020-09-24 17:22:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:22:58,613 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-09-24 17:22:58,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:22:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-09-24 17:22:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 17:22:58,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:22:58,615 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:22:58,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:22:58,615 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:22:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:22:58,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1365663380, now seen corresponding path program 1 times [2020-09-24 17:22:58,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:22:58,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826996112] [2020-09-24 17:22:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:22:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:58,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:59,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:59,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 17:22:59,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:22:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-09-24 17:22:59,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:22:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:22:59,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 17:22:59,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:59,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:22:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:22:59,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:22:59,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:22:59,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:22:59,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:22:59,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:22:59,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:22:59,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:22:59,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:22:59,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:22:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:22:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:22:59,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826996112] [2020-09-24 17:22:59,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:22:59,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 17:22:59,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637327732] [2020-09-24 17:22:59,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:22:59,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:22:59,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:22:59,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:22:59,419 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 5 states. [2020-09-24 17:23:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:23:01,667 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2020-09-24 17:23:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:23:01,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-24 17:23:01,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:23:01,669 INFO L225 Difference]: With dead ends: 51 [2020-09-24 17:23:01,670 INFO L226 Difference]: Without dead ends: 37 [2020-09-24 17:23:01,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:23:01,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-24 17:23:01,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2020-09-24 17:23:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 17:23:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-09-24 17:23:01,677 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 29 [2020-09-24 17:23:01,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:23:01,678 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-09-24 17:23:01,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:23:01,678 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-09-24 17:23:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 17:23:01,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:23:01,679 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:23:01,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:23:01,680 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:23:01,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:23:01,680 INFO L82 PathProgramCache]: Analyzing trace with hash 85634078, now seen corresponding path program 1 times [2020-09-24 17:23:01,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:23:01,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061805626] [2020-09-24 17:23:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:23:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:23:01,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:01,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:01,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:02,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:23:02,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:23:02,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:23:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-09-24 17:23:02,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:23:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:23:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 17:23:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:23:02,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:23:04,573 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse9 (div c_main_~l~0 2))) (let ((.cse1 (* 2 .cse9))) (let ((.cse6 (= c_main_~l~0 .cse1)) (.cse7 (* 4294967296 (div c_main_~l~0 4294967296))) (.cse8 (* .cse9 (- 2)))) (let ((.cse5 (* 4294967296 (div (+ .cse8 c_main_~l~0 (- 2)) 4294967296))) (.cse3 (< c_main_~l~0 .cse7)) (.cse4 (not .cse6)) (.cse2 (* 4294967296 (div (+ .cse8 c_main_~l~0) 4294967296))) (.cse0 (or .cse6 (<= .cse7 c_main_~l~0)))) (or (and .cse0 (<= (+ .cse1 .cse2 1) c_main_~l~0)) (and .cse3 .cse4 (<= c_main_~l~0 (+ .cse1 .cse5 3))) (and (<= (+ .cse1 .cse5 5) c_main_~l~0) .cse3 .cse4) (and (<= (+ c_main_~l~0 1) (+ .cse1 .cse2)) .cse0)))))) is different from false [2020-09-24 17:23:04,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:23:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:23:04,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:23:04,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:23:04,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:23:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:23:04,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:23:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:23:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:23:04,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:23:04,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:23:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2020-09-24 17:23:04,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061805626] [2020-09-24 17:23:04,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:23:04,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 17:23:04,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724187574] [2020-09-24 17:23:04,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:23:04,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:23:04,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:23:04,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2020-09-24 17:23:04,599 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 5 states. [2020-09-24 17:23:06,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:23:06,863 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-09-24 17:23:06,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 17:23:06,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 17:23:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:23:06,864 INFO L225 Difference]: With dead ends: 52 [2020-09-24 17:23:06,865 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 17:23:06,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2020-09-24 17:23:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 17:23:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2020-09-24 17:23:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-24 17:23:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-09-24 17:23:06,877 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 30 [2020-09-24 17:23:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:23:06,878 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-09-24 17:23:06,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:23:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-09-24 17:23:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 17:23:06,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:23:06,882 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:23:06,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:23:06,883 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:23:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:23:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash -613358466, now seen corresponding path program 1 times [2020-09-24 17:23:06,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:23:06,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132828266] [2020-09-24 17:23:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:23:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:23:06,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:07,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:23:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 17:23:07,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:23:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-24 17:23:07,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:23:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 17:23:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 17:23:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 17:23:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:23:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:23:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:23:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:23:07,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:23:07,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:23:07,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:23:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:23:07,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:23:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:23:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:23:07,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:23:07,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:23:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 17:23:07,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132828266] [2020-09-24 17:23:07,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 17:23:07,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 17:23:07,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861889336] [2020-09-24 17:23:07,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 17:23:07,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:23:07,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 17:23:07,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-24 17:23:07,741 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 12 states. [2020-09-24 17:23:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:23:08,317 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2020-09-24 17:23:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 17:23:08,318 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-09-24 17:23:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:23:08,318 INFO L225 Difference]: With dead ends: 48 [2020-09-24 17:23:08,318 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:23:08,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:23:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:23:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:23:08,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:23:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:23:08,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-09-24 17:23:08,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:23:08,323 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:23:08,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 17:23:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:23:08,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:23:08,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:23:08,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:23:08,577 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:23:08,577 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-24 17:23:08,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:23:08,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:23:08,578 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 17:23:08,578 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:23:08,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:23:08,578 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-09-24 17:23:08,579 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 33) no Hoare annotation was computed. [2020-09-24 17:23:08,580 INFO L268 CegarLoopResult]: For program point L23(lines 23 28) no Hoare annotation was computed. [2020-09-24 17:23:08,580 INFO L268 CegarLoopResult]: For program point L25-2(lines 21 28) no Hoare annotation was computed. [2020-09-24 17:23:08,580 INFO L268 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2020-09-24 17:23:08,580 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 17:23:08,580 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 30) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v4~0))) (and (<= .cse0 main_~l~0) (<= main_~l~0 .cse0))) [2020-09-24 17:23:08,580 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 17:23:08,581 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 30) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v4~0))) (or (and (<= .cse0 main_~l~0) (<= main_~l~0 .cse0)) (let ((.cse2 (+ main_~i~0 main_~j~0 main_~k~0)) (.cse1 (+ main_~i~0 main_~k~0))) (and (<= 0 .cse1) (<= 0 .cse2) (<= main_~i~0 0) (<= .cse2 0) (= main_~l~0 0) (<= 0 main_~i~0) (<= .cse0 0) (<= .cse1 0) (<= (+ main_~i~0 main_~j~0 main_~k~0 main_~v4~0 (* 4294967296 (div main_~l~0 4294967296))) (+ (* 4294967296 (div .cse0 4294967296)) main_~l~0)))))) [2020-09-24 17:23:08,581 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 17:23:08,581 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 17:23:08,581 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 17:23:08,581 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 17:23:08,582 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 33) no Hoare annotation was computed. [2020-09-24 17:23:08,582 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-24 17:23:08,582 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 33) the Hoare annotation is: true [2020-09-24 17:23:08,582 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 17:23:08,582 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 17:23:08,582 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 17:23:08,582 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 17:23:08,583 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 17:23:08,583 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 17:23:08,583 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 17:23:08,583 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 17:23:08,583 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 17:23:08,583 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 17:23:08,584 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 17:23:08,584 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 17:23:08,584 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 17:23:08,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:23:08 BoogieIcfgContainer [2020-09-24 17:23:08,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:23:08,610 INFO L168 Benchmark]: Toolchain (without parser) took 15417.68 ms. Allocated memory was 140.5 MB in the beginning and 293.1 MB in the end (delta: 152.6 MB). Free memory was 102.6 MB in the beginning and 247.2 MB in the end (delta: -144.6 MB). Peak memory consumption was 155.1 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:08,611 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 17:23:08,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.73 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 92.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:08,613 INFO L168 Benchmark]: Boogie Preprocessor took 120.13 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 182.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:08,614 INFO L168 Benchmark]: RCFGBuilder took 410.52 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 167.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:08,615 INFO L168 Benchmark]: TraceAbstraction took 14512.01 ms. Allocated memory was 203.9 MB in the beginning and 293.1 MB in the end (delta: 89.1 MB). Free memory was 167.1 MB in the beginning and 247.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 156.2 MB. Max. memory is 7.1 GB. [2020-09-24 17:23:08,620 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.73 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 92.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.13 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 182.5 MB in the end (delta: -90.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.52 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 167.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14512.01 ms. Allocated memory was 203.9 MB in the beginning and 293.1 MB in the end (delta: 89.1 MB). Free memory was 167.1 MB in the beginning and 247.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 156.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: i + j + k + v4 <= l && l <= i + j + k + v4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 594 SDslu, 205 SDs, 0 SdLazy, 770 SolverSat, 112 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 6 MinimizatonAttempts, 77 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 14 PreInvPairs, 22 NumberOfFragments, 99 HoareAnnotationTreeSize, 14 FomulaSimplifications, 1779 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 124 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 52338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 13/22 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...