/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_single_elem_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:00:04,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:00:04,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:00:04,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:00:04,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:00:04,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:00:04,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:00:04,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:00:04,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:00:04,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:00:04,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:00:04,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:00:04,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:00:04,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:00:04,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:00:04,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:00:04,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:00:04,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:00:04,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:00:04,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:00:04,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:00:04,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:00:04,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:00:04,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:00:04,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:00:04,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:00:04,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:00:04,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:00:04,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:00:04,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:00:04,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:00:04,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:00:04,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:00:04,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:00:04,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:00:04,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:00:04,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:00:04,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:00:04,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:00:04,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:00:04,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:00:04,667 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 [2020-10-29 04:00:04,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:00:04,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:00:04,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:00:04,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:00:04,725 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:00:04,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:00:04,726 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:00:04,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:00:04,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:00:04,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:00:04,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:00:04,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:00:04,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:00:04,728 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:00:04,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:00:04,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:00:04,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:00:04,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:00:04,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:00:04,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:00:04,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:00:04,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:00:04,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:00:04,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:00:04,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:00:04,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:00:04,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:00:04,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:00:04,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:00:04,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:00:05,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:00:05,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:00:05,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:00:05,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:00:05,273 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:00:05,275 INFO L432 ainManager$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 [2020-10-29 04:00:05,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177d104c5/238089c62b1b4510bea614b8d62cdac8/FLAG8cb00e316 [2020-10-29 04:00:06,051 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:00:06,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_single_elem_init.i [2020-10-29 04:00:06,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177d104c5/238089c62b1b4510bea614b8d62cdac8/FLAG8cb00e316 [2020-10-29 04:00:06,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/177d104c5/238089c62b1b4510bea614b8d62cdac8 [2020-10-29 04:00:06,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:00:06,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:00:06,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:00:06,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:00:06,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:00:06,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:00:06" (1/1) ... [2020-10-29 04:00:06,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598f9ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:06, skipping insertion in model container [2020-10-29 04:00:06,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:00:06" (1/1) ... [2020-10-29 04:00:06,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:00:06,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:00:06,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:00:08,931 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:00:08,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:00:08,993 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:00:08,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08 WrapperNode [2020-10-29 04:00:08,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:00:08,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:00:08,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:00:08,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:00:09,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (1/1) ... [2020-10-29 04:00:09,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:00:09,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:00:09,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:00:09,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:00:09,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (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 [2020-10-29 04:00:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:00:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:00:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:00:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:00:09,147 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:00:09,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:00:09,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:00:09,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:00:09,510 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:00:09,511 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 04:00:09,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:00:09 BoogieIcfgContainer [2020-10-29 04:00:09,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:00:09,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:00:09,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:00:09,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:00:09,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:00:06" (1/3) ... [2020-10-29 04:00:09,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8f84af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:00:09, skipping insertion in model container [2020-10-29 04:00:09,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:00:08" (2/3) ... [2020-10-29 04:00:09,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8f84af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:00:09, skipping insertion in model container [2020-10-29 04:00:09,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:00:09" (3/3) ... [2020-10-29 04:00:09,529 INFO L111 eAbstractionObserver]: Analyzing ICFG array_of_struct_single_elem_init.i [2020-10-29 04:00:09,541 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:00:09,550 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:00:09,560 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:00:09,587 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:00:09,587 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:00:09,587 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:00:09,587 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:00:09,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:00:09,587 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:00:09,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:00:09,587 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:00:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-29 04:00:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 04:00:09,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:00:09,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:00:09,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:00:09,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:00:09,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1917630349, now seen corresponding path program 1 times [2020-10-29 04:00:09,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:00:09,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551685483] [2020-10-29 04:00:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:00:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:09,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:10,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:10,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 04:00:10,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:10,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-29 04:00:10,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:10,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:00:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:00:10,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:00:10,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:00:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:00:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:10,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:10,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:00:10,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 04:00:10,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:10,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:00:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:00:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:00:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:00:10,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551685483] [2020-10-29 04:00:10,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:00:10,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:00:10,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290996837] [2020-10-29 04:00:10,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 04:00:10,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:00:10,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 04:00:10,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:00:10,366 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-10-29 04:00:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:00:10,517 INFO L93 Difference]: Finished difference Result 55 states and 72 transitions. [2020-10-29 04:00:10,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 04:00:10,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-29 04:00:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:00:10,567 INFO L225 Difference]: With dead ends: 55 [2020-10-29 04:00:10,567 INFO L226 Difference]: Without dead ends: 27 [2020-10-29 04:00:10,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:00:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-29 04:00:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-10-29 04:00:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-29 04:00:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-10-29 04:00:10,620 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 17 [2020-10-29 04:00:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:00:10,620 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-10-29 04:00:10,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 04:00:10,621 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2020-10-29 04:00:10,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 04:00:10,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:00:10,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:00:10,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:00:10,623 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:00:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:00:10,624 INFO L82 PathProgramCache]: Analyzing trace with hash -32099162, now seen corresponding path program 1 times [2020-10-29 04:00:10,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:00:10,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657398642] [2020-10-29 04:00:10,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:00:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:10,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:10,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:10,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 04:00:10,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 04:00:10,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:10,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:00:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:00:10,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:00:10,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:10,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:00:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:10,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:10,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:10,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:00:10,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 04:00:10,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:10,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:00:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:00:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:00:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:00:10,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657398642] [2020-10-29 04:00:10,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:00:10,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:00:10,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211172518] [2020-10-29 04:00:10,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:00:10,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:00:10,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:00:10,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:00:10,949 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 4 states. [2020-10-29 04:00:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:00:11,133 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2020-10-29 04:00:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:00:11,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-29 04:00:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:00:11,136 INFO L225 Difference]: With dead ends: 50 [2020-10-29 04:00:11,137 INFO L226 Difference]: Without dead ends: 35 [2020-10-29 04:00:11,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:00:11,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-29 04:00:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2020-10-29 04:00:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-29 04:00:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-10-29 04:00:11,151 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 17 [2020-10-29 04:00:11,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:00:11,151 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-10-29 04:00:11,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:00:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-10-29 04:00:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 04:00:11,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:00:11,153 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] [2020-10-29 04:00:11,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:00:11,153 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:00:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:00:11,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1743023967, now seen corresponding path program 1 times [2020-10-29 04:00:11,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:00:11,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968258766] [2020-10-29 04:00:11,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:00:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:11,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:12,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 04:00:12,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:00:12,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 992 [2020-10-29 04:00:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:12,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:00:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:00:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:00:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:12,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:00:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:12,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:12,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:12,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:00:12,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:12,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:00:12,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:12,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:00:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:00:12,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:00:12,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:00:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:00:12,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968258766] [2020-10-29 04:00:12,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:00:12,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:00:12,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603581044] [2020-10-29 04:00:12,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:00:12,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:00:12,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:00:12,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:00:12,337 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 11 states. [2020-10-29 04:00:12,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:00:12,825 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2020-10-29 04:00:12,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:00:12,826 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-29 04:00:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:00:12,828 INFO L225 Difference]: With dead ends: 67 [2020-10-29 04:00:12,828 INFO L226 Difference]: Without dead ends: 63 [2020-10-29 04:00:12,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:00:12,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-29 04:00:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 39. [2020-10-29 04:00:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 04:00:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-10-29 04:00:12,847 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 21 [2020-10-29 04:00:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:00:12,848 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-10-29 04:00:12,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:00:12,849 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-10-29 04:00:12,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 04:00:12,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:00:12,850 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] [2020-10-29 04:00:12,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:00:12,852 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:00:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:00:12,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1540826079, now seen corresponding path program 1 times [2020-10-29 04:00:12,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:00:12,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277605597] [2020-10-29 04:00:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:00:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:12,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:12,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:13,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:13,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 04:00:13,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:00:13,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-10-29 04:00:13,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:13,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:13,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:00:13,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:00:13,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:00:13,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:13,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:00:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:13,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:13,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:13,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:00:13,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:13,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 04:00:13,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:13,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:00:13,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:00:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:00:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:00:13,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277605597] [2020-10-29 04:00:13,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:00:13,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:00:13,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837340748] [2020-10-29 04:00:13,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:00:13,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:00:13,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:00:13,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:00:13,595 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 10 states. [2020-10-29 04:00:14,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:00:14,114 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2020-10-29 04:00:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:00:14,115 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-10-29 04:00:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:00:14,119 INFO L225 Difference]: With dead ends: 90 [2020-10-29 04:00:14,119 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 04:00:14,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:00:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 04:00:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2020-10-29 04:00:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-29 04:00:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2020-10-29 04:00:14,132 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 21 [2020-10-29 04:00:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:00:14,133 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-10-29 04:00:14,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:00:14,133 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2020-10-29 04:00:14,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 04:00:14,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:00:14,135 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] [2020-10-29 04:00:14,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:00:14,135 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:00:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:00:14,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1211336932, now seen corresponding path program 2 times [2020-10-29 04:00:14,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:00:14,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234287988] [2020-10-29 04:00:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:00:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:14,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:14,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:15,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:15,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:00:15,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:00:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1363 [2020-10-29 04:00:15,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:15,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:00:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:00:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 04:00:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:15,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:00:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:15,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:00:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:00:15,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 04:00:15,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:15,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:00:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:00:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:00:15,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:00:16,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1234287988] [2020-10-29 04:00:16,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:00:16,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:00:16,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265981494] [2020-10-29 04:00:16,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:00:16,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:00:16,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:00:16,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:00:16,011 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 15 states. [2020-10-29 04:00:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:00:16,883 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2020-10-29 04:00:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:00:16,884 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2020-10-29 04:00:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:00:16,885 INFO L225 Difference]: With dead ends: 89 [2020-10-29 04:00:16,885 INFO L226 Difference]: Without dead ends: 85 [2020-10-29 04:00:16,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:00:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-29 04:00:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 47. [2020-10-29 04:00:16,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-29 04:00:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2020-10-29 04:00:16,898 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 25 [2020-10-29 04:00:16,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:00:16,898 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2020-10-29 04:00:16,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:00:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2020-10-29 04:00:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 04:00:16,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:00:16,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:00:16,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:00:16,900 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:00:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:00:16,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2072513114, now seen corresponding path program 1 times [2020-10-29 04:00:16,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:00:16,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103806999] [2020-10-29 04:00:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:00:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:00:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:17,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:17,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:00:18,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:00:18,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:00:18,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:00:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1770 [2020-10-29 04:00:18,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:00:18,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:00:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 04:00:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:00:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 04:00:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:00:18,747 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 10: A-local: [(main_~i~0_9 Int)], B-local: []. [2020-10-29 04:00:18,748 ERROR L253 erpolLogProxyWrapper]: Symbol error in Interpolant 11: A-local: [(main_~i~0_9 Int)], B-local: []. [2020-10-29 04:00:18,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:00:18,755 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:851) 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:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) 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:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-29 04:00:18,764 INFO L168 Benchmark]: Toolchain (without parser) took 12375.72 ms. Allocated memory was 151.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 126.3 MB in the beginning and 484.4 MB in the end (delta: -358.1 MB). Peak memory consumption was 644.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:00:18,766 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:00:18,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2602.73 ms. Allocated memory was 151.0 MB in the beginning and 486.5 MB in the end (delta: 335.5 MB). Free memory was 125.8 MB in the beginning and 222.8 MB in the end (delta: -97.1 MB). Peak memory consumption was 285.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:00:18,775 INFO L168 Benchmark]: Boogie Preprocessor took 73.55 ms. Allocated memory is still 486.5 MB. Free memory was 222.8 MB in the beginning and 220.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:00:18,776 INFO L168 Benchmark]: RCFGBuilder took 447.83 ms. Allocated memory is still 486.5 MB. Free memory was 220.7 MB in the beginning and 202.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:00:18,777 INFO L168 Benchmark]: TraceAbstraction took 9239.95 ms. Allocated memory was 486.5 MB in the beginning and 1.2 GB in the end (delta: 665.8 MB). Free memory was 202.4 MB in the beginning and 484.4 MB in the end (delta: -282.1 MB). Peak memory consumption was 385.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:00:18,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 2602.73 ms. Allocated memory was 151.0 MB in the beginning and 486.5 MB in the end (delta: 335.5 MB). Free memory was 125.8 MB in the beginning and 222.8 MB in the end (delta: -97.1 MB). Peak memory consumption was 285.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 73.55 ms. Allocated memory is still 486.5 MB. Free memory was 222.8 MB in the beginning and 220.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 447.83 ms. Allocated memory is still 486.5 MB. Free memory was 220.7 MB in the beginning and 202.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9239.95 ms. Allocated memory was 486.5 MB in the beginning and 1.2 GB in the end (delta: 665.8 MB). Free memory was 202.4 MB in the beginning and 484.4 MB in the end (delta: -282.1 MB). Peak memory consumption was 385.4 MB. Max. memory is 8.0 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...