/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-industry-pattern/array_of_struct_ptr_flag_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:38:04,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:38:04,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:38:04,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:38:04,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:38:04,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:38:04,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:38:04,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:38:04,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:38:04,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:38:04,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:38:04,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:38:04,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:38:04,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:38:04,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:38:04,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:38:04,600 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:38:04,601 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:38:04,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:38:04,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:38:04,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:38:04,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:38:04,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:38:04,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:38:04,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:38:04,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:38:04,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:38:04,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:38:04,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:38:04,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:38:04,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:38:04,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:38:04,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:38:04,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:38:04,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:38:04,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:38:04,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:38:04,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:38:04,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:38:04,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:38:04,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:38:04,625 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 13:38:04,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:38:04,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:38:04,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:38:04,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:38:04,654 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:38:04,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:38:04,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:38:04,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:38:04,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:38:04,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:38:04,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:38:04,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:38:04,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:38:04,656 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:38:04,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:38:04,656 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:38:04,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:38:04,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:38:04,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:38:04,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:38:04,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:38:04,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:38:04,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:38:04,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:38:04,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:38:04,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:38:04,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:38:04,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:38:04,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:38:04,659 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 13:38:05,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:38:05,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:38:05,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:38:05,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:38:05,222 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:38:05,224 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-09-25 13:38:05,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e0ae5650/1aed7df176d74dcb9a0cccf7c184fa3d/FLAGfdfe83ccd [2020-09-25 13:38:05,868 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:38:05,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-industry-pattern/array_of_struct_ptr_flag_init.i [2020-09-25 13:38:05,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e0ae5650/1aed7df176d74dcb9a0cccf7c184fa3d/FLAGfdfe83ccd [2020-09-25 13:38:06,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e0ae5650/1aed7df176d74dcb9a0cccf7c184fa3d [2020-09-25 13:38:06,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:38:06,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:38:06,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:38:06,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:38:06,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:38:06,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b2c62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06, skipping insertion in model container [2020-09-25 13:38:06,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:38:06,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:38:06,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:38:06,555 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:38:06,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:38:06,599 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:38:06,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06 WrapperNode [2020-09-25 13:38:06,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:38:06,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:38:06,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:38:06,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:38:06,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (1/1) ... [2020-09-25 13:38:06,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:38:06,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:38:06,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:38:06,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:38:06,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (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 13:38:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:38:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:38:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 13:38:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 13:38:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:38:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:38:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:38:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 13:38:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 13:38:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:38:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:38:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:38:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:38:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:38:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:38:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:38:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:38:07,181 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:38:07,182 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-25 13:38:07,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:38:07 BoogieIcfgContainer [2020-09-25 13:38:07,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:38:07,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:38:07,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:38:07,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:38:07,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:38:06" (1/3) ... [2020-09-25 13:38:07,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4fe1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:38:07, skipping insertion in model container [2020-09-25 13:38:07,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:38:06" (2/3) ... [2020-09-25 13:38:07,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4fe1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:38:07, skipping insertion in model container [2020-09-25 13:38:07,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:38:07" (3/3) ... [2020-09-25 13:38:07,199 INFO L109 eAbstractionObserver]: Analyzing ICFG array_of_struct_ptr_flag_init.i [2020-09-25 13:38:07,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:38:07,222 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:38:07,245 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:38:07,276 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:38:07,276 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:38:07,276 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:38:07,277 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:38:07,277 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:38:07,277 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:38:07,277 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:38:07,277 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:38:07,300 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-09-25 13:38:07,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 13:38:07,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:07,310 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 13:38:07,310 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:07,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:07,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1392671971, now seen corresponding path program 1 times [2020-09-25 13:38:07,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:07,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862070788] [2020-09-25 13:38:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:07,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:07,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:07,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 13:38:07,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:07,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 13:38:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:07,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 13:38:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:38:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:38:07,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:07,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:07,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:07,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:07,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:07,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:38:07,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:07,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:07,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:07,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:07,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 13:38:07,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:07,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:07,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:07,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:07,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:38:07,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:07,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:38:07,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:07,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:07,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:07,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:07,978 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 13:38:07,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862070788] [2020-09-25 13:38:07,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:38:07,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:38:07,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799378193] [2020-09-25 13:38:07,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:38:07,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:08,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:38:08,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:38:08,012 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 5 states. [2020-09-25 13:38:08,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:08,369 INFO L93 Difference]: Finished difference Result 109 states and 134 transitions. [2020-09-25 13:38:08,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:38:08,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-25 13:38:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:08,390 INFO L225 Difference]: With dead ends: 109 [2020-09-25 13:38:08,391 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 13:38:08,396 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 13:38:08,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 13:38:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2020-09-25 13:38:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:38:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-09-25 13:38:08,472 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 29 [2020-09-25 13:38:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:08,472 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-09-25 13:38:08,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:38:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-09-25 13:38:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 13:38:08,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:08,475 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 13:38:08,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:38:08,476 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:08,476 INFO L82 PathProgramCache]: Analyzing trace with hash 215899159, now seen corresponding path program 1 times [2020-09-25 13:38:08,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:08,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184077193] [2020-09-25 13:38:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:08,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:08,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:10,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:10,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 13:38:10,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:38:10,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1906 [2020-09-25 13:38:10,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:10,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:10,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:38:10,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 13:38:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:38:10,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:38:10,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:10,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:10,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:10,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:10,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:38:10,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:10,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:10,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:10,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:10,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:10,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:10,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 13:38:10,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 13:38:10,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:10,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:38:10,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:38:10,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:38:10,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:10,727 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 13:38:10,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184077193] [2020-09-25 13:38:10,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:10,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 13:38:10,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004068860] [2020-09-25 13:38:10,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 13:38:10,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:10,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 13:38:10,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:38:10,732 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 14 states. [2020-09-25 13:38:11,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:11,647 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2020-09-25 13:38:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 13:38:11,647 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36 [2020-09-25 13:38:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:11,650 INFO L225 Difference]: With dead ends: 128 [2020-09-25 13:38:11,650 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 13:38:11,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2020-09-25 13:38:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 13:38:11,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 71. [2020-09-25 13:38:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-25 13:38:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2020-09-25 13:38:11,666 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 36 [2020-09-25 13:38:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:11,667 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2020-09-25 13:38:11,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 13:38:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2020-09-25 13:38:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 13:38:11,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:11,669 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 13:38:11,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:38:11,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:11,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:11,670 INFO L82 PathProgramCache]: Analyzing trace with hash -253984627, now seen corresponding path program 1 times [2020-09-25 13:38:11,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:11,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153919077] [2020-09-25 13:38:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:11,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:11,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:11,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:13,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:38:13,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:38:13,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1379 [2020-09-25 13:38:13,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:13,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 13:38:13,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:38:13,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:13,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:13,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:13,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:13,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:13,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:38:13,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:13,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:13,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:13,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:13,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:13,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:13,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:13,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:13,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 13:38:13,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:13,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 13:38:13,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:13,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:13,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:38:13,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 13:38:13,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:38:13,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:13,384 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 13:38:13,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153919077] [2020-09-25 13:38:13,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:13,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:38:13,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741667889] [2020-09-25 13:38:13,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:38:13,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:13,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:38:13,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:38:13,387 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand 10 states. [2020-09-25 13:38:13,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:13,744 INFO L93 Difference]: Finished difference Result 148 states and 168 transitions. [2020-09-25 13:38:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 13:38:13,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-09-25 13:38:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:13,746 INFO L225 Difference]: With dead ends: 148 [2020-09-25 13:38:13,746 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 13:38:13,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2020-09-25 13:38:13,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 13:38:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2020-09-25 13:38:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:38:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2020-09-25 13:38:13,757 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 43 [2020-09-25 13:38:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:13,757 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2020-09-25 13:38:13,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:38:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2020-09-25 13:38:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 13:38:13,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:13,760 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 13:38:13,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:38:13,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:13,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:13,761 INFO L82 PathProgramCache]: Analyzing trace with hash 522790245, now seen corresponding path program 1 times [2020-09-25 13:38:13,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:13,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339476808] [2020-09-25 13:38:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:13,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:13,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:14,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:18,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:18,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 13:38:18,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:38:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 13:38:18,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:18,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:18,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 13:38:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 13:38:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:18,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:18,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:18,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:18,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:38:18,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:18,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:18,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:18,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:18,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:19,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:19,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:38:19,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:38:19,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-09-25 13:38:19,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:19,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:19,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:38:19,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:19,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:38:19,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:19,071 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 13:38:19,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339476808] [2020-09-25 13:38:19,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:38:19,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:38:19,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062257788] [2020-09-25 13:38:19,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:38:19,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:19,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:38:19,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:38:19,075 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 5 states. [2020-09-25 13:38:19,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:19,184 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-09-25 13:38:19,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:38:19,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-09-25 13:38:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:19,186 INFO L225 Difference]: With dead ends: 77 [2020-09-25 13:38:19,187 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 13:38:19,187 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 13:38:19,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 13:38:19,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 13:38:19,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:38:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2020-09-25 13:38:19,197 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 53 [2020-09-25 13:38:19,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:19,197 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2020-09-25 13:38:19,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:38:19,197 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-09-25 13:38:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 13:38:19,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:38:19,199 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 13:38:19,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:38:19,200 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:38:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:38:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash 505818470, now seen corresponding path program 1 times [2020-09-25 13:38:19,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:38:19,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880663628] [2020-09-25 13:38:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:38:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:19,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:19,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:19,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:19,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:19,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:19,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:24,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:24,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 13:38:24,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:38:24,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 13:38:24,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:24,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:24,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:38:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:38:24,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 13:38:24,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:24,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:38:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:24,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:24,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:24,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:38:24,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:24,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:38:24,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:24,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:24,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:24,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:38:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:24,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:24,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:24,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:25,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:38:25,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:38:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1155 [2020-09-25 13:38:25,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:25,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:38:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:38:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 13:38:25,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:25,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:38:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:38:25,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:38:25,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:38:25,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:38:25,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:38:25,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:38:25,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:38:25,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:38:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:38:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:38:25,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:38:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:38:25,738 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 13:38:25,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880663628] [2020-09-25 13:38:25,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:38:25,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 13:38:25,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787971502] [2020-09-25 13:38:25,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 13:38:25,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:38:25,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 13:38:25,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 13:38:25,741 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand 13 states. [2020-09-25 13:38:26,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:38:26,094 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2020-09-25 13:38:26,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:38:26,094 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-09-25 13:38:26,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:38:26,095 INFO L225 Difference]: With dead ends: 65 [2020-09-25 13:38:26,095 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:38:26,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-09-25 13:38:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:38:26,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:38:26,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:38:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:38:26,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-09-25 13:38:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:38:26,098 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:38:26,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 13:38:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:38:26,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:38:26,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:38:26,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:38:26,387 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-09-25 13:38:26,394 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 13:38:26,394 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point initEXIT(lines 9 16) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L14-2(lines 12 15) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L9(lines 9 16) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 13:38:26,395 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 13:38:26,396 INFO L264 CegarLoopResult]: At program point L12-5(lines 12 15) the Hoare annotation is: (let ((.cse0 (<= init_~a.offset |init_#in~a.offset|)) (.cse1 (or (= 100000 init_~size) (= |init_#in~size| init_~size))) (.cse2 (<= |init_#in~size| init_~size)) (.cse3 (= init_~a.base |init_#in~a.base|)) (.cse4 (<= |init_#in~a.offset| init_~a.offset))) (or (and (= |init_#in~a.offset| (+ init_~a.offset (* init_~i~0 4))) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) .cse0 .cse1 (= |old(#length)| |#length|) .cse2 .cse3 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) .cse4 (= |old(#valid)| |#valid|)) (and .cse0 .cse1 (not (= |init_#t~malloc1.base| 0)) .cse2 .cse3 (not (= (select (select |#memory_$Pointer$.base| init_~a.base) |init_#in~a.offset|) 0)) .cse4))) [2020-09-25 13:38:26,397 INFO L268 CegarLoopResult]: For program point L12-6(lines 9 16) no Hoare annotation was computed. [2020-09-25 13:38:26,397 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 13:38:26,397 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 13:38:26,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:38:26,397 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 13:38:26,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:38:26,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 13:38:26,398 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 13:38:26,398 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 13:38:26,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 13:38:26,398 INFO L268 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2020-09-25 13:38:26,398 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 13:38:26,398 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-25 13:38:26,399 INFO L264 CegarLoopResult]: At program point L31-5(lines 31 35) the Hoare annotation is: (<= 1 main_~flag~0) [2020-09-25 13:38:26,400 INFO L268 CegarLoopResult]: For program point L31-6(lines 31 35) no Hoare annotation was computed. [2020-09-25 13:38:26,400 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2020-09-25 13:38:26,400 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= main_~flag~0 0) [2020-09-25 13:38:26,400 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 13:38:26,400 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 13:38:26,400 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 13:38:26,401 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 13:38:26,401 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 13:38:26,401 INFO L268 CegarLoopResult]: For program point L24-2(lines 24 30) no Hoare annotation was computed. [2020-09-25 13:38:26,401 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-09-25 13:38:26,401 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-09-25 13:38:26,401 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 13:38:26,402 INFO L268 CegarLoopResult]: For program point L24-6(lines 24 30) no Hoare annotation was computed. [2020-09-25 13:38:26,402 INFO L268 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-09-25 13:38:26,402 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 13:38:26,402 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2020-09-25 13:38:26,402 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 13:38:26,402 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: false [2020-09-25 13:38:26,402 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 13:38:26,403 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 13:38:26,403 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 13:38:26,403 INFO L268 CegarLoopResult]: For program point L26-1(lines 26 29) no Hoare annotation was computed. [2020-09-25 13:38:26,403 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 13:38:26,403 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 13:38:26,403 INFO L268 CegarLoopResult]: For program point L26-4(line 26) no Hoare annotation was computed. [2020-09-25 13:38:26,404 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-09-25 13:38:26,404 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2020-09-25 13:38:26,404 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2020-09-25 13:38:26,404 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 13:38:26,407 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 13:38:26,407 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-09-25 13:38:26,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,430 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,449 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,450 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,450 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,451 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:38:26 BoogieIcfgContainer [2020-09-25 13:38:26,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:38:26,461 INFO L168 Benchmark]: Toolchain (without parser) took 20231.66 ms. Allocated memory was 144.7 MB in the beginning and 361.8 MB in the end (delta: 217.1 MB). Free memory was 100.9 MB in the beginning and 176.9 MB in the end (delta: -76.0 MB). Peak memory consumption was 141.0 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:26,462 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 13:38:26,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.47 ms. Allocated memory is still 144.7 MB. Free memory was 100.2 MB in the beginning and 90.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:26,470 INFO L168 Benchmark]: Boogie Preprocessor took 138.74 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 90.1 MB in the beginning and 178.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:26,472 INFO L168 Benchmark]: RCFGBuilder took 448.83 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 160.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:26,472 INFO L168 Benchmark]: TraceAbstraction took 19267.45 ms. Allocated memory was 200.8 MB in the beginning and 361.8 MB in the end (delta: 161.0 MB). Free memory was 159.4 MB in the beginning and 176.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 143.5 MB. Max. memory is 7.1 GB. [2020-09-25 13:38:26,487 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.47 ms. Allocated memory is still 144.7 MB. Free memory was 100.2 MB in the beginning and 90.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.74 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 90.1 MB in the beginning and 178.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.83 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 160.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19267.45 ms. Allocated memory was 200.8 MB in the beginning and 361.8 MB in the end (delta: 161.0 MB). Free memory was 159.4 MB in the beginning and 176.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 143.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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_$Pointer$.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 - 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 #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_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 13:38:26,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,504 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,511 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 13:38:26,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-25 13:38:26,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-25 13:38:26,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-09-25 13:38:26,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-25 13:38:26,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((((((a == a + i * 4 && #memory_$Pointer$ == \old(#memory_$Pointer$)) && a <= a) && (100000 == size || \old(size) == size)) && \old(unknown-#length-unknown) == unknown-#length-unknown) && \old(size) <= size) && a == a) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && a <= a) && \old(\valid) == \valid) || ((((((a <= a && (100000 == size || \old(size) == size)) && !(malloc(sizeof(int)) == 0)) && \old(size) <= size) && a == a) && !(#memory_$Pointer$[a][a] == 0)) && a <= a) - 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: 18.8s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 275 SDslu, 693 SDs, 0 SdLazy, 846 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 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, 141 HoareAnnotationTreeSize, 17 FomulaSimplifications, 84 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, 40471 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...