/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 SequenceOfStatements --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_single_elem_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:17:48,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:17:48,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:17:48,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:17:48,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:17:48,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:17:48,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:17:48,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:17:48,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:17:48,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:17:48,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:17:48,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:17:48,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:17:48,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:17:48,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:17:48,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:17:48,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:17:48,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:17:48,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:17:48,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:17:48,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:17:48,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:17:48,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:17:48,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:17:48,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:17:48,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:17:48,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:17:48,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:17:48,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:17:48,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:17:48,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:17:48,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:17:48,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:17:48,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:17:48,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:17:48,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:17:48,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:17:48,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:17:48,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:17:48,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:17:48,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:17:48,729 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 [2020-10-14 18:17:48,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:17:48,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:17:48,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:17:48,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:17:48,769 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:17:48,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:17:48,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:17:48,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:17:48,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:17:48,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:17:48,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:17:48,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:17:48,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:17:48,770 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:17:48,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:17:48,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:17:48,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:17:48,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:17:48,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:17:48,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:17:48,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:17:48,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:17:48,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:17:48,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:17:48,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:17:48,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:17:48,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:17:48,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:17:48,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:17:48,773 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 -> SequenceOfStatements 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;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:17:49,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:17:49,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:17:49,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:17:49,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:17:49,068 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:17:49,069 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_single_elem_init.i [2020-10-14 18:17:49,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a8b335aa/7a73e3890d5e482dbccfe3c865a9838c/FLAG6f8d69c70 [2020-10-14 18:17:49,617 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:17:49,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_single_elem_init.i [2020-10-14 18:17:49,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a8b335aa/7a73e3890d5e482dbccfe3c865a9838c/FLAG6f8d69c70 [2020-10-14 18:17:50,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6a8b335aa/7a73e3890d5e482dbccfe3c865a9838c [2020-10-14 18:17:50,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:17:50,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:17:50,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:17:50,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:17:50,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:17:50,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:17:50" (1/1) ... [2020-10-14 18:17:50,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6fb34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:50, skipping insertion in model container [2020-10-14 18:17:50,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:17:50" (1/1) ... [2020-10-14 18:17:50,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:17:50,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:17:50,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:17:52,674 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:17:52,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:17:52,728 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:17:52,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52 WrapperNode [2020-10-14 18:17:52,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:17:52,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:17:52,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:17:52,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:17:52,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (1/1) ... [2020-10-14 18:17:52,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:17:52,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:17:52,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:17:52,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:17:52,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (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 [2020-10-14 18:17:52,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:17:52,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:17:52,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 18:17:52,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:17:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:17:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:17:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 18:17:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:17:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 18:17:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 18:17:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 18:17:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 18:17:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 18:17:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:17:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:17:53,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:17:53,145 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-14 18:17:53,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:17:53 BoogieIcfgContainer [2020-10-14 18:17:53,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:17:53,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:17:53,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:17:53,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:17:53,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:17:50" (1/3) ... [2020-10-14 18:17:53,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592d7c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:17:53, skipping insertion in model container [2020-10-14 18:17:53,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:17:52" (2/3) ... [2020-10-14 18:17:53,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592d7c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:17:53, skipping insertion in model container [2020-10-14 18:17:53,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:17:53" (3/3) ... [2020-10-14 18:17:53,158 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_single_elem_init.i [2020-10-14 18:17:53,170 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:17:53,179 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:17:53,193 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:17:53,217 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:17:53,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:17:53,218 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:17:53,218 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:17:53,218 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:17:53,218 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:17:53,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:17:53,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:17:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-14 18:17:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 18:17:53,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:17:53,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:17:53,245 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:17:53,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:17:53,252 INFO L82 PathProgramCache]: Analyzing trace with hash 198312087, now seen corresponding path program 1 times [2020-10-14 18:17:53,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:17:53,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305900378] [2020-10-14 18:17:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:17:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:53,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:53,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:53,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 18:17:53,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:17:53,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 18:17:53,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:53,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:17:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 18:17:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:17:53,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 18:17:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:17:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:53,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:53,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:53,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:17:53,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:17:53,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 18:17:53,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:53,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:53,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:17:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:17:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:17:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:17:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:17:53,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305900378] [2020-10-14 18:17:53,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:17:53,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:17:53,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640569941] [2020-10-14 18:17:53,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:17:53,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:17:53,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:17:53,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:17:53,637 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2020-10-14 18:17:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:17:53,740 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2020-10-14 18:17:53,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:17:53,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-14 18:17:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:17:53,750 INFO L225 Difference]: With dead ends: 48 [2020-10-14 18:17:53,751 INFO L226 Difference]: Without dead ends: 25 [2020-10-14 18:17:53,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:17:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-14 18:17:53,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-10-14 18:17:53,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-14 18:17:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-14 18:17:53,795 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2020-10-14 18:17:53,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:17:53,795 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-14 18:17:53,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:17:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-14 18:17:53,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-14 18:17:53,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:17:53,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:17:53,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:17:53,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:17:53,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:17:53,798 INFO L82 PathProgramCache]: Analyzing trace with hash -2074583670, now seen corresponding path program 1 times [2020-10-14 18:17:53,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:17:53,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309808281] [2020-10-14 18:17:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:17:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:53,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:53,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 18:17:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:17:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 18:17:53,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:53,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:17:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 18:17:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 18:17:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 18:17:54,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:17:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:54,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:54,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:54,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:17:54,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:17:54,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 18:17:54,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:54,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:54,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:17:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:17:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:17:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 18:17:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:17:54,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309808281] [2020-10-14 18:17:54,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:17:54,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 18:17:54,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712161638] [2020-10-14 18:17:54,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 18:17:54,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:17:54,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 18:17:54,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 18:17:54,081 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2020-10-14 18:17:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:17:54,207 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-10-14 18:17:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 18:17:54,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-14 18:17:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:17:54,211 INFO L225 Difference]: With dead ends: 46 [2020-10-14 18:17:54,211 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 18:17:54,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 18:17:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 18:17:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 24. [2020-10-14 18:17:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-14 18:17:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-10-14 18:17:54,225 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2020-10-14 18:17:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:17:54,225 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-14 18:17:54,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 18:17:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-10-14 18:17:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 18:17:54,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:17:54,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:17:54,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:17:54,227 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:17:54,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:17:54,228 INFO L82 PathProgramCache]: Analyzing trace with hash -84436795, now seen corresponding path program 1 times [2020-10-14 18:17:54,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:17:54,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235110891] [2020-10-14 18:17:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:17:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:54,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:54,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:54,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:54,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 18:17:54,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:17:54,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 538 [2020-10-14 18:17:54,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:54,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 18:17:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 18:17:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 18:17:54,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:17:55,006 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2020-10-14 18:17:55,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:17:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:55,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:55,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:55,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:17:55,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:17:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 18:17:55,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:55,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:17:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:17:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:17:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:17:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:17:55,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235110891] [2020-10-14 18:17:55,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:17:55,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 18:17:55,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373344838] [2020-10-14 18:17:55,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 18:17:55,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:17:55,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 18:17:55,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-14 18:17:55,116 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 11 states. [2020-10-14 18:17:55,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:17:55,686 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2020-10-14 18:17:55,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 18:17:55,687 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-14 18:17:55,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:17:55,689 INFO L225 Difference]: With dead ends: 61 [2020-10-14 18:17:55,689 INFO L226 Difference]: Without dead ends: 59 [2020-10-14 18:17:55,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-10-14 18:17:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-14 18:17:55,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 37. [2020-10-14 18:17:55,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-14 18:17:55,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2020-10-14 18:17:55,699 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 19 [2020-10-14 18:17:55,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:17:55,700 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2020-10-14 18:17:55,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 18:17:55,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-10-14 18:17:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 18:17:55,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:17:55,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:17:55,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 18:17:55,702 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:17:55,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:17:55,702 INFO L82 PathProgramCache]: Analyzing trace with hash 173728643, now seen corresponding path program 1 times [2020-10-14 18:17:55,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:17:55,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664525139] [2020-10-14 18:17:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:17:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:55,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:56,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:56,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 18:17:56,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:17:56,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 18:17:56,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:56,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 18:17:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 18:17:56,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 18:17:56,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:17:56,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:17:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:56,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:56,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:56,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 18:17:56,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:17:56,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 18:17:56,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:56,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:17:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:17:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:17:56,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:17:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:17:56,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664525139] [2020-10-14 18:17:56,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 18:17:56,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 18:17:56,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974609508] [2020-10-14 18:17:56,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 18:17:56,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:17:56,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 18:17:56,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-14 18:17:56,297 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 10 states. [2020-10-14 18:17:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:17:56,828 INFO L93 Difference]: Finished difference Result 84 states and 106 transitions. [2020-10-14 18:17:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 18:17:56,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-14 18:17:56,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:17:56,833 INFO L225 Difference]: With dead ends: 84 [2020-10-14 18:17:56,833 INFO L226 Difference]: Without dead ends: 67 [2020-10-14 18:17:56,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-14 18:17:56,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-14 18:17:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 44. [2020-10-14 18:17:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-14 18:17:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2020-10-14 18:17:56,843 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 19 [2020-10-14 18:17:56,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:17:56,844 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2020-10-14 18:17:56,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 18:17:56,844 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2020-10-14 18:17:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-14 18:17:56,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:17:56,845 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] [2020-10-14 18:17:56,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 18:17:56,846 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:17:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:17:56,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1616196288, now seen corresponding path program 1 times [2020-10-14 18:17:56,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:17:56,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254293698] [2020-10-14 18:17:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:17:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:17:56,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:56,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:56,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:17:57,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:17:57,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 18:17:57,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:17:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-14 18:17:57,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:17:57,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:17:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 18:17:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 18:17:57,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 18:17:57,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:17:57,571 ERROR L253 erpolLogProxyWrapper]: Interpolant 5 not inductive [2020-10-14 18:17:57,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 18:17:57,579 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-14 18:17:57,586 INFO L168 Benchmark]: Toolchain (without parser) took 7554.66 ms. Allocated memory was 147.8 MB in the beginning and 649.1 MB in the end (delta: 501.2 MB). Free memory was 104.4 MB in the beginning and 241.2 MB in the end (delta: -136.8 MB). Peak memory consumption was 364.4 MB. Max. memory is 7.1 GB. [2020-10-14 18:17:57,587 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 18:17:57,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2694.98 ms. Allocated memory was 147.8 MB in the beginning and 580.4 MB in the end (delta: 432.5 MB). Free memory was 104.0 MB in the beginning and 324.9 MB in the end (delta: -220.9 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. [2020-10-14 18:17:57,589 INFO L168 Benchmark]: Boogie Preprocessor took 47.11 ms. Allocated memory is still 580.4 MB. Free memory was 324.9 MB in the beginning and 320.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-14 18:17:57,590 INFO L168 Benchmark]: RCFGBuilder took 372.64 ms. Allocated memory is still 580.4 MB. Free memory was 320.9 MB in the beginning and 296.3 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-14 18:17:57,591 INFO L168 Benchmark]: TraceAbstraction took 4433.67 ms. Allocated memory was 580.4 MB in the beginning and 649.1 MB in the end (delta: 68.7 MB). Free memory was 296.3 MB in the beginning and 241.2 MB in the end (delta: 55.1 MB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2020-10-14 18:17:57,595 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2694.98 ms. Allocated memory was 147.8 MB in the beginning and 580.4 MB in the end (delta: 432.5 MB). Free memory was 104.0 MB in the beginning and 324.9 MB in the end (delta: -220.9 MB). Peak memory consumption was 328.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.11 ms. Allocated memory is still 580.4 MB. Free memory was 324.9 MB in the beginning and 320.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.64 ms. Allocated memory is still 580.4 MB. Free memory was 320.9 MB in the beginning and 296.3 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4433.67 ms. Allocated memory was 580.4 MB in the beginning and 649.1 MB in the end (delta: 68.7 MB). Free memory was 296.3 MB in the beginning and 241.2 MB in the end (delta: 55.1 MB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...