/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:17:36,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:17:36,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:17:36,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:17:36,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:17:36,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:17:36,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:17:36,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:17:36,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:17:36,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:17:36,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:17:36,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:17:36,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:17:36,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:17:36,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:17:36,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:17:36,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:17:36,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:17:36,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:17:36,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:17:36,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:17:36,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:17:36,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:17:36,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:17:36,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:17:36,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:17:36,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:17:36,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:17:36,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:17:36,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:17:36,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:17:36,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:17:36,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:17:36,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:17:36,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:17:36,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:17:36,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:17:36,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:17:36,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:17:36,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:17:36,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:17:36,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:17:36,875 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:17:36,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:17:36,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:17:36,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:17:36,877 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:17:36,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:17:36,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:17:36,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:17:36,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:17:36,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:17:36,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:17:36,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:17:36,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:17:36,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:17:36,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:17:36,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:17:36,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:17:36,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:17:36,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:17:36,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:17:36,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:17:36,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:17:36,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:17:36,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:17:36,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:17:36,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:17:36,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:17:36,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:17:36,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:17:36,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:17:37,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:17:37,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:17:37,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:17:37,236 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:17:37,236 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:17:37,237 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2020-10-14 05:17:37,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dc44259c/99df5ce65e0c44eb8ba9b09bab367a70/FLAGcbcfd9798 [2020-10-14 05:17:37,780 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:17:37,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2020-10-14 05:17:37,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dc44259c/99df5ce65e0c44eb8ba9b09bab367a70/FLAGcbcfd9798 [2020-10-14 05:17:38,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dc44259c/99df5ce65e0c44eb8ba9b09bab367a70 [2020-10-14 05:17:38,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:17:38,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:17:38,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:17:38,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:17:38,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:17:38,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d6c161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38, skipping insertion in model container [2020-10-14 05:17:38,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:17:38,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:17:38,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:17:38,630 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:17:38,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:17:38,728 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:17:38,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38 WrapperNode [2020-10-14 05:17:38,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:17:38,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:17:38,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:17:38,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:17:38,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... [2020-10-14 05:17:38,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:17:38,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:17:38,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:17:38,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:17:38,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:17:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:17:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:17:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:17:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:17:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-10-14 05:17:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-14 05:17:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:17:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:17:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:17:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:17:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 05:17:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 05:17:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:17:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:17:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:17:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 05:17:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:17:41,629 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:17:41,630 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 05:17:41,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:17:41 BoogieIcfgContainer [2020-10-14 05:17:41,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:17:41,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:17:41,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:17:41,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:17:41,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:17:38" (1/3) ... [2020-10-14 05:17:41,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e2a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:17:41, skipping insertion in model container [2020-10-14 05:17:41,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:17:38" (2/3) ... [2020-10-14 05:17:41,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e2a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:17:41, skipping insertion in model container [2020-10-14 05:17:41,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:17:41" (3/3) ... [2020-10-14 05:17:41,643 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2020-10-14 05:17:41,654 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:17:41,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:17:41,679 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:17:41,721 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:17:41,722 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:17:41,722 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:17:41,722 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:17:41,722 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:17:41,723 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:17:41,723 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:17:41,723 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:17:41,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-14 05:17:41,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-14 05:17:41,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:41,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:41,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:41,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:41,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1960518123, now seen corresponding path program 1 times [2020-10-14 05:17:41,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:41,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637742104] [2020-10-14 05:17:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:42,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:42,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:42,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:17:42,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:42,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-10-14 05:17:42,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:42,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:17:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:17:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 05:17:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 05:17:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:42,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:42,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:42,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:42,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:42,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:17:42,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:42,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:42,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:42,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:42,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:42,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:42,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637742104] [2020-10-14 05:17:42,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:17:42,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:17:42,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259343421] [2020-10-14 05:17:42,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:17:42,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:42,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:17:42,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:17:42,699 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2020-10-14 05:17:44,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:44,913 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-10-14 05:17:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:17:44,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-14 05:17:44,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:44,925 INFO L225 Difference]: With dead ends: 38 [2020-10-14 05:17:44,925 INFO L226 Difference]: Without dead ends: 21 [2020-10-14 05:17:44,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:17:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-14 05:17:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-10-14 05:17:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 05:17:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-14 05:17:44,969 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2020-10-14 05:17:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:44,970 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-14 05:17:44,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:17:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-14 05:17:44,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 05:17:44,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:44,971 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:44,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:17:44,972 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:44,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:44,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1182240945, now seen corresponding path program 1 times [2020-10-14 05:17:44,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:44,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434695509] [2020-10-14 05:17:44,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:45,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 05:17:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-14 05:17:45,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:45,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:17:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:17:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 05:17:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:45,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:17:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:45,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:45,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:17:45,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434695509] [2020-10-14 05:17:45,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:17:45,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 05:17:45,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20700189] [2020-10-14 05:17:45,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:17:45,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:45,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:17:45,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:17:45,603 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2020-10-14 05:17:49,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:49,827 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-10-14 05:17:49,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:17:49,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-14 05:17:49,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:49,829 INFO L225 Difference]: With dead ends: 29 [2020-10-14 05:17:49,829 INFO L226 Difference]: Without dead ends: 26 [2020-10-14 05:17:49,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:17:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-14 05:17:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2020-10-14 05:17:49,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-14 05:17:49,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-14 05:17:49,837 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2020-10-14 05:17:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:49,837 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-14 05:17:49,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:17:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-14 05:17:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-14 05:17:49,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:17:49,839 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:17:49,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:17:49,839 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:17:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:17:49,840 INFO L82 PathProgramCache]: Analyzing trace with hash 491744683, now seen corresponding path program 2 times [2020-10-14 05:17:49,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:17:49,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454605436] [2020-10-14 05:17:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:17:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:49,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:50,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:50,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:50,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 05:17:50,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:17:50,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-14 05:17:50,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:50,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:50,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:17:50,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:17:50,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 05:17:50,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:51,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:17:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:17:51,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:17:51,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:17:51,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:17:51,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:17:51,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:17:51,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:17:51,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:17:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:17:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:17:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:17:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:17:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:17:51,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454605436] [2020-10-14 05:17:51,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:17:51,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:17:51,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727471632] [2020-10-14 05:17:51,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:17:51,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:17:51,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:17:51,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:17:51,144 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 9 states. [2020-10-14 05:17:59,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:17:59,773 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-10-14 05:17:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 05:17:59,775 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-14 05:17:59,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:17:59,776 INFO L225 Difference]: With dead ends: 23 [2020-10-14 05:17:59,776 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:17:59,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-14 05:17:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:17:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:17:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:17:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:17:59,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-14 05:17:59,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:17:59,781 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:17:59,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:17:59,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:17:59,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:17:59,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:17:59,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:17:59,986 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:17:59,987 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-14 05:17:59,987 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:17:59,987 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:17:59,987 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2020-10-14 05:17:59,988 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:17:59,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:17:59,988 INFO L268 CegarLoopResult]: For program point L159(lines 159 234) no Hoare annotation was computed. [2020-10-14 05:17:59,988 INFO L268 CegarLoopResult]: For program point L188(lines 188 206) no Hoare annotation was computed. [2020-10-14 05:17:59,988 INFO L268 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-10-14 05:17:59,988 INFO L268 CegarLoopResult]: For program point L217(lines 217 225) no Hoare annotation was computed. [2020-10-14 05:17:59,989 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 131 235) no Hoare annotation was computed. [2020-10-14 05:17:59,989 INFO L268 CegarLoopResult]: For program point L180(lines 180 227) no Hoare annotation was computed. [2020-10-14 05:17:59,989 INFO L268 CegarLoopResult]: For program point L178(lines 178 232) no Hoare annotation was computed. [2020-10-14 05:17:59,989 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 131 235) no Hoare annotation was computed. [2020-10-14 05:17:59,989 INFO L268 CegarLoopResult]: For program point L195(lines 195 205) no Hoare annotation was computed. [2020-10-14 05:17:59,989 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2020-10-14 05:17:59,990 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 131 235) the Hoare annotation is: (or (and (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) (not (= |old(~Id_MCDC_93~0)| 0))) [2020-10-14 05:17:59,990 INFO L264 CegarLoopResult]: At program point L200(lines 165 233) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 (+ (* 4294967296 (div ~Id_MCDC_93~0 4294967296)) 41)) (<= 1 (+ (* 4294967296 (div (+ (* main_~Id_MCDC_89__Id_MCDC_96~0 (- 1)) 41) 4294967296)) main_~Id_MCDC_89__Id_MCDC_96~0)) .cse0) (not (= |old(~Id_MCDC_93~0)| 0)) (and (= ~Id_MCDC_93~0 0) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) .cse0))) [2020-10-14 05:18:00,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:18:00 BoogieIcfgContainer [2020-10-14 05:18:00,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:18:00,038 INFO L168 Benchmark]: Toolchain (without parser) took 21889.49 ms. Allocated memory was 147.8 MB in the beginning and 270.5 MB in the end (delta: 122.7 MB). Free memory was 103.5 MB in the beginning and 166.4 MB in the end (delta: -63.0 MB). Peak memory consumption was 59.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:18:00,039 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 05:18:00,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.46 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 176.4 MB in the end (delta: -73.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:18:00,042 INFO L168 Benchmark]: Boogie Preprocessor took 78.50 ms. Allocated memory is still 203.9 MB. Free memory was 176.4 MB in the beginning and 172.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-14 05:18:00,045 INFO L168 Benchmark]: RCFGBuilder took 2825.96 ms. Allocated memory is still 203.9 MB. Free memory was 172.2 MB in the beginning and 99.0 MB in the end (delta: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2020-10-14 05:18:00,047 INFO L168 Benchmark]: TraceAbstraction took 18399.40 ms. Allocated memory was 203.9 MB in the beginning and 270.5 MB in the end (delta: 66.6 MB). Free memory was 98.4 MB in the beginning and 166.4 MB in the end (delta: -68.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 05:18:00,055 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 580.46 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.2 MB in the beginning and 176.4 MB in the end (delta: -73.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.50 ms. Allocated memory is still 203.9 MB. Free memory was 176.4 MB in the beginning and 172.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2825.96 ms. Allocated memory is still 203.9 MB. Free memory was 172.2 MB in the beginning and 99.0 MB in the end (delta: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18399.40 ms. Allocated memory was 203.9 MB in the beginning and 270.5 MB in the end (delta: 66.6 MB). Free memory was 98.4 MB in the beginning and 166.4 MB in the end (delta: -68.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 219]: 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: 165]: Loop Invariant [2020-10-14 05:18:00,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-14 05:18:00,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((Id_MCDC_93 <= 4294967296 * (Id_MCDC_93 / 4294967296) + 41 && 1 <= 4294967296 * ((Id_MCDC_89__Id_MCDC_96 * -1 + 41) / 4294967296) + Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || !(\old(Id_MCDC_93) == 0)) || ((Id_MCDC_93 == 0 && Id_MCDC_89__Id_MCDC_96 == 0) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 43 SDslu, 67 SDs, 0 SdLazy, 139 SolverSat, 22 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 109 HoareAnnotationTreeSize, 5 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 155 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 8632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 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...