/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:38:06,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:38:06,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:38:06,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:38:06,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:38:06,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:38:06,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:38:06,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:38:06,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:38:06,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:38:06,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:38:06,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:38:06,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:38:06,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:38:06,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:38:06,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:38:06,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:38:06,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:38:06,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:38:06,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:38:06,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:38:06,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:38:06,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:38:06,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:38:06,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:38:06,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:38:06,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:38:06,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:38:06,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:38:06,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:38:06,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:38:06,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:38:06,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:38:06,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:38:06,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:38:06,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:38:06,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:38:06,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:38:06,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:38:06,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:38:06,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:38:06,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:38:06,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:38:06,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:38:06,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:38:06,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:38:06,308 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:38:06,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:38:06,309 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:38:06,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:38:06,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:38:06,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:38:06,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:38:06,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:38:06,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:38:06,311 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:38:06,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:38:06,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:38:06,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:38:06,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:38:06,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:38:06,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:38:06,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:38:06,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:38:06,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:38:06,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:38:06,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:38:06,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:38:06,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:38:06,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:38:06,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:38:06,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:38:06,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:38:06,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:38:06,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:38:06,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:38:06,815 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:38:06,816 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2020-09-25 13:38:06,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6e20fe90/3e3df6f3a0104f15b88ef94ae5e28383/FLAGa3df2d04b [2020-09-25 13:38:07,415 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:38:07,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2020-09-25 13:38:07,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6e20fe90/3e3df6f3a0104f15b88ef94ae5e28383/FLAGa3df2d04b [2020-09-25 13:38:07,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b6e20fe90/3e3df6f3a0104f15b88ef94ae5e28383 [2020-09-25 13:38:07,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:38:07,773 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:38:07,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:38:07,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:38:07,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:38:07,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:38:07" (1/1) ... [2020-09-25 13:38:07,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a18185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:07, skipping insertion in model container [2020-09-25 13:38:07,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:38:07" (1/1) ... [2020-09-25 13:38:07,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:38:07,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:38:08,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:38:08,072 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:38:08,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:38:08,113 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:38:08,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08 WrapperNode [2020-09-25 13:38:08,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:38:08,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:38:08,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:38:08,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:38:08,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (1/1) ... [2020-09-25 13:38:08,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:38:08,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:38:08,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:38:08,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:38:08,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (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 [2020-09-25 13:38:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:38:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:38:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:38:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 13:38:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:38:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:38:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:38:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:38:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_pointer [2020-09-25 13:38:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 13:38:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:38:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:38:08,664 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:38:08,664 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 13:38:08,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:38:08 BoogieIcfgContainer [2020-09-25 13:38:08,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:38:08,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:38:08,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:38:08,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:38:08,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:38:07" (1/3) ... [2020-09-25 13:38:08,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d7bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:38:08, skipping insertion in model container [2020-09-25 13:38:08,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:08" (2/3) ... [2020-09-25 13:38:08,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d7bd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:38:08, skipping insertion in model container [2020-09-25 13:38:08,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:38:08" (3/3) ... [2020-09-25 13:38:08,679 INFO L109 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2020-09-25 13:38:08,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:38:08,698 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:38:08,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:38:08,745 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:38:08,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:38:08,745 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:38:08,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:38:08,746 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:38:08,746 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:38:08,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:38:08,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:38:08,767 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-09-25 13:38:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 13:38:08,775 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:08,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:38:08,776 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:08,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:08,782 INFO L82 PathProgramCache]: Analyzing trace with hash -2004589429, now seen corresponding path program 1 times [2020-09-25 13:38:08,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:08,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667039829] [2020-09-25 13:38:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:08,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:09,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:09,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:09,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 13:38:09,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:09,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 13:38:09,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:09,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 13:38:09,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:38:09,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:38:09,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:09,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:09,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:09,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:09,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:09,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:38:09,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:09,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:09,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:09,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:09,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:09,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:38:09,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:38:09,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:09,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:09,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:09,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:38:09,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667039829] [2020-09-25 13:38:09,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:38:09,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:38:09,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227427743] [2020-09-25 13:38:09,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:38:09,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:09,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:38:09,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:38:09,432 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 5 states. [2020-09-25 13:38:09,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:09,680 INFO L93 Difference]: Finished difference Result 109 states and 134 transitions. [2020-09-25 13:38:09,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:38:09,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-25 13:38:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:09,697 INFO L225 Difference]: With dead ends: 109 [2020-09-25 13:38:09,698 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 13:38:09,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:38:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 13:38:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2020-09-25 13:38:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:38:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-09-25 13:38:09,764 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 29 [2020-09-25 13:38:09,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:09,764 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-09-25 13:38:09,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:38:09,765 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-09-25 13:38:09,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 13:38:09,766 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:09,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:38:09,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:38:09,767 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:09,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1596363536, now seen corresponding path program 1 times [2020-09-25 13:38:09,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:09,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185147475] [2020-09-25 13:38:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:09,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 13:38:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:38:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1831 [2020-09-25 13:38:11,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:11,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:38:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 13:38:11,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:38:11,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:11,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:11,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:11,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:11,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:11,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:11,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:38:11,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:11,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:11,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:11,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:11,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:11,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:11,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:38:11,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 13:38:11,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:11,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:38:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:38:11,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:38:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:38:11,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185147475] [2020-09-25 13:38:11,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:11,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 13:38:11,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872387445] [2020-09-25 13:38:11,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 13:38:11,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:11,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 13:38:11,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:38:11,994 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 14 states. [2020-09-25 13:38:12,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:12,892 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2020-09-25 13:38:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:38:12,893 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36 [2020-09-25 13:38:12,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:12,895 INFO L225 Difference]: With dead ends: 128 [2020-09-25 13:38:12,895 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 13:38:12,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2020-09-25 13:38:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 13:38:12,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 71. [2020-09-25 13:38:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 13:38:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2020-09-25 13:38:12,910 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 36 [2020-09-25 13:38:12,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:12,910 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2020-09-25 13:38:12,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 13:38:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2020-09-25 13:38:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 13:38:12,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:12,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:38:12,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:38:12,913 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:12,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1998641845, now seen corresponding path program 1 times [2020-09-25 13:38:12,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:12,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094546246] [2020-09-25 13:38:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:12,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:12,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:14,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:14,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:38:14,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:38:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-09-25 13:38:14,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:14,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 13:38:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:38:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:14,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:14,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:14,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:14,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:14,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:38:14,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:14,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:14,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:14,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:14,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:14,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:14,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:38:14,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 13:38:14,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:14,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:38:14,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:38:14,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:38:14,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:38:14,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094546246] [2020-09-25 13:38:14,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:14,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:38:14,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174153688] [2020-09-25 13:38:14,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:38:14,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:14,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:38:14,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:38:14,684 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand 10 states. [2020-09-25 13:38:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:15,164 INFO L93 Difference]: Finished difference Result 148 states and 168 transitions. [2020-09-25 13:38:15,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:38:15,167 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-09-25 13:38:15,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:15,168 INFO L225 Difference]: With dead ends: 148 [2020-09-25 13:38:15,169 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 13:38:15,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:38:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 13:38:15,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2020-09-25 13:38:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:38:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-09-25 13:38:15,186 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 43 [2020-09-25 13:38:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:15,186 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-09-25 13:38:15,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:38:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-09-25 13:38:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 13:38:15,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:15,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:38:15,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:38:15,193 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:15,194 INFO L82 PathProgramCache]: Analyzing trace with hash -14946867, now seen corresponding path program 1 times [2020-09-25 13:38:15,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:15,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826621644] [2020-09-25 13:38:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:15,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:15,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:15,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:15,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:15,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:20,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 13:38:20,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:38:20,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:38:20,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:20,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:20,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:20,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 13:38:20,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 13:38:20,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:20,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:20,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:20,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:20,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:20,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:38:20,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:20,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:20,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:20,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:20,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:38:20,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 13:38:20,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:20,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:20,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:20,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:20,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:38:20,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 13:38:20,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826621644] [2020-09-25 13:38:20,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:38:20,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:38:20,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329845014] [2020-09-25 13:38:20,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:38:20,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:20,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:38:20,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:38:20,476 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 5 states. [2020-09-25 13:38:20,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:20,576 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-09-25 13:38:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:38:20,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-09-25 13:38:20,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:20,578 INFO L225 Difference]: With dead ends: 77 [2020-09-25 13:38:20,579 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 13:38:20,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:38:20,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 13:38:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 13:38:20,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:38:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2020-09-25 13:38:20,588 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 53 [2020-09-25 13:38:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:20,588 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2020-09-25 13:38:20,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:38:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-09-25 13:38:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 13:38:20,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:20,590 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:38:20,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:38:20,590 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:20,591 INFO L82 PathProgramCache]: Analyzing trace with hash -74232320, now seen corresponding path program 1 times [2020-09-25 13:38:20,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:20,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346803176] [2020-09-25 13:38:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:20,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:25,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 13:38:25,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:38:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:38:25,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:25,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:38:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:38:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:38:25,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:25,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:25,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:38:25,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:25,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:25,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:25,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:27,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:27,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:38:27,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:38:27,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-09-25 13:38:27,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:27,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:38:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:38:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:27,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:38:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:27,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:27,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:27,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:38:27,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:27,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:38:27,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:27,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:38:27,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:27,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 13:38:27,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346803176] [2020-09-25 13:38:27,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:27,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 13:38:27,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003846612] [2020-09-25 13:38:27,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:38:27,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:27,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:38:27,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:38:27,196 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 13 states. [2020-09-25 13:38:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:27,451 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2020-09-25 13:38:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:38:27,451 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-09-25 13:38:27,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:27,452 INFO L225 Difference]: With dead ends: 65 [2020-09-25 13:38:27,452 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:38:27,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:38:27,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:38:27,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:38:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:38:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:38:27,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-09-25 13:38:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:27,454 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:38:27,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:38:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:38:27,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:38:27,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:38:27,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:38:27,690 INFO L264 CegarLoopResult]: At program point initENTRY(lines 9 16) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 13:38:27,691 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 13:38:27,691 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 13:38:27,691 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-09-25 13:38:27,691 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 13:38:27,691 INFO L268 CegarLoopResult]: For program point L14-2(lines 12 15) no Hoare annotation was computed. [2020-09-25 13:38:27,691 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 13:38:27,692 INFO L268 CegarLoopResult]: For program point L9(lines 9 16) no Hoare annotation was computed. [2020-09-25 13:38:27,692 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 13:38:27,692 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 13:38:27,692 INFO L264 CegarLoopResult]: At program point L12-5(lines 12 15) the Hoare annotation is: (let ((.cse0 (<= |init_#in~size| init_~size)) (.cse1 (= init_~a.base |init_#in~a.base|)) (.cse2 (or (= 1000000 init_~size) (= |init_#in~size| init_~size)))) (or (and (= init_~a.offset |init_#in~a.offset|) (not (= |init_#t~malloc1.base| 0)) .cse0 .cse1 .cse2 (not (= (select (select |#memory_$Pointer$.base| init_~a.base) |init_#in~a.offset|) 0))) (let ((.cse3 (* init_~i~0 4))) (and (= |init_#in~a.offset| (+ init_~a.offset .cse3)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse0 .cse1 .cse2 (= .cse3 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))))) [2020-09-25 13:38:27,692 INFO L268 CegarLoopResult]: For program point L12-6(lines 9 16) no Hoare annotation was computed. [2020-09-25 13:38:27,693 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 13:38:27,693 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 13:38:27,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:38:27,693 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 13:38:27,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:38:27,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:38:27,694 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:38:27,694 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:38:27,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:38:27,694 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-09-25 13:38:27,694 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 13:38:27,694 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-25 13:38:27,694 INFO L264 CegarLoopResult]: At program point L31-5(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-09-25 13:38:27,695 INFO L268 CegarLoopResult]: For program point L31-6(lines 31 35) no Hoare annotation was computed. [2020-09-25 13:38:27,695 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-09-25 13:38:27,695 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= main_~flag~0 0) [2020-09-25 13:38:27,695 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 13:38:27,695 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 13:38:27,695 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 13:38:27,695 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 13:38:27,696 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 13:38:27,696 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-09-25 13:38:27,696 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-09-25 13:38:27,696 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-09-25 13:38:27,696 INFO L264 CegarLoopResult]: At program point L24-5(lines 24 30) the Hoare annotation is: (or (<= 1 main_~flag~0) (and (= main_~flag~0 0) (not (= 0 (select (select |#memory_$Pointer$.base| |main_~#a~0.base|) (+ (* main_~i~1 4) |main_~#a~0.offset|)))) (= main_~i~1 0))) [2020-09-25 13:38:27,696 INFO L268 CegarLoopResult]: For program point L24-6(lines 24 30) no Hoare annotation was computed. [2020-09-25 13:38:27,697 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-09-25 13:38:27,697 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 13:38:27,697 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-09-25 13:38:27,697 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 13:38:27,697 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: false [2020-09-25 13:38:27,697 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 13:38:27,697 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L26-1(lines 26 29) no Hoare annotation was computed. [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L26-4(line 26) no Hoare annotation was computed. [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 13:38:27,698 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 13:38:27,699 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 13:38:27,699 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 13:38:27,699 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 13:38:27,699 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 13:38:27,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,717 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,723 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,727 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,728 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,728 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,728 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,728 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:38:27 BoogieIcfgContainer [2020-09-25 13:38:27,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:38:27,736 INFO L168 Benchmark]: Toolchain (without parser) took 19966.17 ms. Allocated memory was 147.8 MB in the beginning and 340.8 MB in the end (delta: 192.9 MB). Free memory was 102.9 MB in the beginning and 221.1 MB in the end (delta: -118.1 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:27,737 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 13:38:27,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.23 ms. Allocated memory is still 147.8 MB. Free memory was 102.2 MB in the beginning and 92.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:27,739 INFO L168 Benchmark]: Boogie Preprocessor took 131.15 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 182.5 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:27,740 INFO L168 Benchmark]: RCFGBuilder took 423.32 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 163.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:27,741 INFO L168 Benchmark]: TraceAbstraction took 19062.18 ms. Allocated memory was 204.5 MB in the beginning and 340.8 MB in the end (delta: 136.3 MB). Free memory was 163.7 MB in the beginning and 221.1 MB in the end (delta: -57.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:27,745 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.23 ms. Allocated memory is still 147.8 MB. Free memory was 102.2 MB in the beginning and 92.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.15 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 182.5 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.32 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 163.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19062.18 ms. Allocated memory was 204.5 MB in the beginning and 340.8 MB in the end (delta: 136.3 MB). Free memory was 163.7 MB in the beginning and 221.1 MB in the end (delta: -57.4 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant [2020-09-25 13:38:27,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: 1 <= flag || ((flag == 0 && !(0 == #memory_$Pointer$[a][i * 4 + a])) && i == 0) - InvariantResult [Line: 12]: Loop Invariant [2020-09-25 13:38:27,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:27,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:27,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:27,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:27,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((a == a && !(malloc(sizeof(int)) == 0)) && \old(size) <= size) && a == a) && (1000000 == size || \old(size) == size)) && !(#memory_$Pointer$[a][a] == 0)) || ((((((((a == a + i * 4 && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(unknown-#length-unknown) == unknown-#length-unknown) && \old(size) <= size) && a == a) && (1000000 == size || \old(size) == size)) && i * 4 == 0) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 <= flag - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.7s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 275 SDslu, 684 SDs, 0 SdLazy, 839 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 53 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 17 PreInvPairs, 24 NumberOfFragments, 137 HoareAnnotationTreeSize, 17 FomulaSimplifications, 81 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 40825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 19/29 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...