/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_3a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 18:34:21,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 18:34:21,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 18:34:21,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 18:34:21,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 18:34:21,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 18:34:21,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 18:34:21,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 18:34:21,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 18:34:21,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 18:34:21,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 18:34:21,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 18:34:21,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 18:34:21,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 18:34:21,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 18:34:21,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 18:34:21,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 18:34:21,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 18:34:21,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 18:34:21,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 18:34:21,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 18:34:21,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 18:34:21,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 18:34:21,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 18:34:21,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 18:34:21,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 18:34:21,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 18:34:21,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 18:34:21,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 18:34:21,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 18:34:21,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 18:34:21,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 18:34:21,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 18:34:21,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 18:34:21,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 18:34:21,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 18:34:21,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 18:34:21,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 18:34:21,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 18:34:21,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 18:34:21,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 18:34:21,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 18:34:21,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 18:34:21,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 18:34:21,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 18:34:21,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 18:34:21,878 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 18:34:21,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 18:34:21,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 18:34:21,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 18:34:21,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 18:34:21,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 18:34:21,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 18:34:21,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 18:34:21,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 18:34:21,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 18:34:21,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 18:34:21,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 18:34:21,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 18:34:21,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 18:34:21,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 18:34:21,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 18:34:21,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 18:34:21,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:34:21,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 18:34:21,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 18:34:21,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 18:34:21,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 18:34:21,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 18:34:21,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 18:34:21,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 18:34:21,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 18:34:22,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 18:34:22,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 18:34:22,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 18:34:22,197 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 18:34:22,198 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 18:34:22,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_3a.BV.c.cil.c [2020-10-14 18:34:22,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a208b926a/074b60debc484db991f9f8e760e50b23/FLAGeb4673e45 [2020-10-14 18:34:22,724 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 18:34:22,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_3a.BV.c.cil.c [2020-10-14 18:34:22,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a208b926a/074b60debc484db991f9f8e760e50b23/FLAGeb4673e45 [2020-10-14 18:34:23,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a208b926a/074b60debc484db991f9f8e760e50b23 [2020-10-14 18:34:23,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 18:34:23,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 18:34:23,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 18:34:23,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 18:34:23,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 18:34:23,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742dacf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23, skipping insertion in model container [2020-10-14 18:34:23,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 18:34:23,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 18:34:23,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:34:23,515 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 18:34:23,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 18:34:23,731 INFO L208 MainTranslator]: Completed translation [2020-10-14 18:34:23,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23 WrapperNode [2020-10-14 18:34:23,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 18:34:23,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 18:34:23,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 18:34:23,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 18:34:23,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... [2020-10-14 18:34:23,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 18:34:23,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 18:34:23,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 18:34:23,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 18:34:23,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 18:34:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 18:34:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 18:34:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-14 18:34:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 18:34:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 18:34:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 18:34:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 18:34:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 18:34:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-14 18:34:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 18:34:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 18:34:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 18:34:24,086 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-14 18:34:24,616 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-14 18:34:24,617 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-14 18:34:24,629 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 18:34:24,629 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 18:34:24,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:34:24 BoogieIcfgContainer [2020-10-14 18:34:24,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 18:34:24,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 18:34:24,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 18:34:24,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 18:34:24,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:34:23" (1/3) ... [2020-10-14 18:34:24,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46981172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:34:24, skipping insertion in model container [2020-10-14 18:34:24,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:34:23" (2/3) ... [2020-10-14 18:34:24,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46981172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:34:24, skipping insertion in model container [2020-10-14 18:34:24,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:34:24" (3/3) ... [2020-10-14 18:34:24,645 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2020-10-14 18:34:24,657 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 18:34:24,665 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 18:34:24,681 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 18:34:24,709 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 18:34:24,709 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 18:34:24,709 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 18:34:24,710 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 18:34:24,710 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 18:34:24,710 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 18:34:24,710 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 18:34:24,711 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 18:34:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-14 18:34:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 18:34:24,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:34:24,751 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, 1, 1, 1, 1, 1, 1] [2020-10-14 18:34:24,752 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:34:24,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:34:24,759 INFO L82 PathProgramCache]: Analyzing trace with hash -459257302, now seen corresponding path program 1 times [2020-10-14 18:34:24,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:34:24,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831616837] [2020-10-14 18:34:24,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:34:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:24,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:25,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:25,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:25,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-14 18:34:25,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:34:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-10-14 18:34:25,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:25,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:25,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:34:25,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 18:34:25,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 18:34:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 18:34:25,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:34:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:25,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:25,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 18:34:25,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:34:25,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:34:25,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:25,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:34:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:34:25,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:34:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:34:25,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831616837] [2020-10-14 18:34:25,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:34:25,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:34:25,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615726084] [2020-10-14 18:34:25,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:34:25,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:34:25,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:34:25,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:25,663 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2020-10-14 18:34:25,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:34:25,770 INFO L93 Difference]: Finished difference Result 405 states and 693 transitions. [2020-10-14 18:34:25,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:34:25,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-10-14 18:34:25,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:34:25,788 INFO L225 Difference]: With dead ends: 405 [2020-10-14 18:34:25,788 INFO L226 Difference]: Without dead ends: 243 [2020-10-14 18:34:25,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-14 18:34:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2020-10-14 18:34:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-14 18:34:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 372 transitions. [2020-10-14 18:34:25,858 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 372 transitions. Word has length 49 [2020-10-14 18:34:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:34:25,859 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 372 transitions. [2020-10-14 18:34:25,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:34:25,859 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 372 transitions. [2020-10-14 18:34:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 18:34:25,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:34:25,864 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:34:25,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 18:34:25,865 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:34:25,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:34:25,865 INFO L82 PathProgramCache]: Analyzing trace with hash -155453879, now seen corresponding path program 1 times [2020-10-14 18:34:25,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:34:25,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732780574] [2020-10-14 18:34:25,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:34:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:25,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:26,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 18:34:26,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:34:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 18:34:26,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:26,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:34:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 18:34:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 18:34:26,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:26,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:34:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:26,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:26,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 18:34:26,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:34:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:34:26,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:26,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:34:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:34:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:34:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 18:34:26,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732780574] [2020-10-14 18:34:26,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:34:26,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:34:26,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529344871] [2020-10-14 18:34:26,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:34:26,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:34:26,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:34:26,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:26,104 INFO L87 Difference]: Start difference. First operand 243 states and 372 transitions. Second operand 3 states. [2020-10-14 18:34:26,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:34:26,171 INFO L93 Difference]: Finished difference Result 473 states and 731 transitions. [2020-10-14 18:34:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:34:26,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-10-14 18:34:26,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:34:26,176 INFO L225 Difference]: With dead ends: 473 [2020-10-14 18:34:26,177 INFO L226 Difference]: Without dead ends: 357 [2020-10-14 18:34:26,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:26,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-10-14 18:34:26,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2020-10-14 18:34:26,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-10-14 18:34:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 548 transitions. [2020-10-14 18:34:26,223 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 548 transitions. Word has length 65 [2020-10-14 18:34:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:34:26,224 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 548 transitions. [2020-10-14 18:34:26,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:34:26,224 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 548 transitions. [2020-10-14 18:34:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-14 18:34:26,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:34:26,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 18:34:26,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 18:34:26,236 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:34:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:34:26,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1411293160, now seen corresponding path program 1 times [2020-10-14 18:34:26,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:34:26,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445870528] [2020-10-14 18:34:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:34:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:26,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:26,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 18:34:26,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 18:34:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-14 18:34:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:26,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:34:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 18:34:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 18:34:26,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:26,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:34:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:26,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:26,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:26,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 18:34:26,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:34:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:34:26,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:26,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:34:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:34:26,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:34:26,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 18:34:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 18:34:26,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445870528] [2020-10-14 18:34:26,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:34:26,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:34:26,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716272538] [2020-10-14 18:34:26,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:34:26,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:34:26,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:34:26,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:26,755 INFO L87 Difference]: Start difference. First operand 357 states and 548 transitions. Second operand 3 states. [2020-10-14 18:34:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:34:27,066 INFO L93 Difference]: Finished difference Result 869 states and 1371 transitions. [2020-10-14 18:34:27,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:34:27,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-10-14 18:34:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:34:27,071 INFO L225 Difference]: With dead ends: 869 [2020-10-14 18:34:27,071 INFO L226 Difference]: Without dead ends: 516 [2020-10-14 18:34:27,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-10-14 18:34:27,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 501. [2020-10-14 18:34:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-10-14 18:34:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 794 transitions. [2020-10-14 18:34:27,098 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 794 transitions. Word has length 86 [2020-10-14 18:34:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:34:27,099 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 794 transitions. [2020-10-14 18:34:27,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:34:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 794 transitions. [2020-10-14 18:34:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-14 18:34:27,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:34:27,102 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1] [2020-10-14 18:34:27,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 18:34:27,102 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:34:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:34:27,103 INFO L82 PathProgramCache]: Analyzing trace with hash 852679283, now seen corresponding path program 1 times [2020-10-14 18:34:27,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:34:27,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1479078356] [2020-10-14 18:34:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:34:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:27,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:27,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:27,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:27,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 18:34:27,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 18:34:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 18:34:27,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:27,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:34:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 18:34:27,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 18:34:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:27,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:34:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:27,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:27,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:27,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 18:34:27,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:34:27,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:34:27,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:27,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:34:27,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:34:27,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:34:27,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 18:34:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-14 18:34:27,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1479078356] [2020-10-14 18:34:27,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:34:27,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:34:27,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489365054] [2020-10-14 18:34:27,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:34:27,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:34:27,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:34:27,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:27,437 INFO L87 Difference]: Start difference. First operand 501 states and 794 transitions. Second operand 3 states. [2020-10-14 18:34:27,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:34:27,498 INFO L93 Difference]: Finished difference Result 989 states and 1575 transitions. [2020-10-14 18:34:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:34:27,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-10-14 18:34:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:34:27,505 INFO L225 Difference]: With dead ends: 989 [2020-10-14 18:34:27,506 INFO L226 Difference]: Without dead ends: 663 [2020-10-14 18:34:27,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2020-10-14 18:34:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2020-10-14 18:34:27,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2020-10-14 18:34:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1053 transitions. [2020-10-14 18:34:27,538 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1053 transitions. Word has length 114 [2020-10-14 18:34:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:34:27,540 INFO L479 AbstractCegarLoop]: Abstraction has 663 states and 1053 transitions. [2020-10-14 18:34:27,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:34:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1053 transitions. [2020-10-14 18:34:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 18:34:27,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:34:27,549 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 18:34:27,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 18:34:27,549 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:34:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:34:27,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1449286990, now seen corresponding path program 1 times [2020-10-14 18:34:27,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:34:27,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418488057] [2020-10-14 18:34:27,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:34:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:27,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:27,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:27,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 18:34:27,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:34:27,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 18:34:27,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:27,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 18:34:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-14 18:34:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 18:34:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 18:34:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:27,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:27,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 18:34:27,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 18:34:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 18:34:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 18:34:27,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 18:34:27,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 18:34:27,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 18:34:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 18:34:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 18:34:27,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 18:34:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-14 18:34:27,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418488057] [2020-10-14 18:34:27,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:34:27,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 18:34:27,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457889121] [2020-10-14 18:34:27,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 18:34:27,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 18:34:27,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 18:34:27,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:27,756 INFO L87 Difference]: Start difference. First operand 663 states and 1053 transitions. Second operand 3 states. [2020-10-14 18:34:27,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 18:34:27,813 INFO L93 Difference]: Finished difference Result 827 states and 1315 transitions. [2020-10-14 18:34:27,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 18:34:27,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-14 18:34:27,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 18:34:27,821 INFO L225 Difference]: With dead ends: 827 [2020-10-14 18:34:27,822 INFO L226 Difference]: Without dead ends: 825 [2020-10-14 18:34:27,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 18:34:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-14 18:34:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2020-10-14 18:34:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-10-14 18:34:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1313 transitions. [2020-10-14 18:34:27,885 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1313 transitions. Word has length 126 [2020-10-14 18:34:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 18:34:27,886 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 1313 transitions. [2020-10-14 18:34:27,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 18:34:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1313 transitions. [2020-10-14 18:34:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-14 18:34:27,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 18:34:27,890 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-10-14 18:34:27,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 18:34:27,890 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 18:34:27,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 18:34:27,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1309687044, now seen corresponding path program 1 times [2020-10-14 18:34:27,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 18:34:27,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875267665] [2020-10-14 18:34:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 18:34:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 18:34:27,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 18:34:27,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1875267665] [2020-10-14 18:34:27,962 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-14 18:34:27,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-14 18:34:27,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-14 18:34:27,963 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-14 18:34:27,964 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 18:34:27,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 18:34:28,039 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 18:34:28,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:34:28 BoogieIcfgContainer [2020-10-14 18:34:28,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 18:34:28,043 INFO L168 Benchmark]: Toolchain (without parser) took 4938.55 ms. Allocated memory was 144.2 MB in the beginning and 305.7 MB in the end (delta: 161.5 MB). Free memory was 99.9 MB in the beginning and 235.6 MB in the end (delta: -135.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-10-14 18:34:28,046 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 18:34:28,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.06 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.9 MB in the beginning and 175.8 MB in the end (delta: -75.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-14 18:34:28,057 INFO L168 Benchmark]: Boogie Preprocessor took 80.28 ms. Allocated memory is still 200.8 MB. Free memory was 175.8 MB in the beginning and 173.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-14 18:34:28,061 INFO L168 Benchmark]: RCFGBuilder took 822.54 ms. Allocated memory is still 200.8 MB. Free memory was 173.7 MB in the beginning and 123.5 MB in the end (delta: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2020-10-14 18:34:28,062 INFO L168 Benchmark]: TraceAbstraction took 3403.30 ms. Allocated memory was 200.8 MB in the beginning and 305.7 MB in the end (delta: 104.9 MB). Free memory was 123.5 MB in the beginning and 235.6 MB in the end (delta: -112.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 18:34:28,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 627.06 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.9 MB in the beginning and 175.8 MB in the end (delta: -75.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.28 ms. Allocated memory is still 200.8 MB. Free memory was 175.8 MB in the beginning and 173.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 822.54 ms. Allocated memory is still 200.8 MB. Free memory was 173.7 MB in the beginning and 123.5 MB in the end (delta: 50.2 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3403.30 ms. Allocated memory was 200.8 MB in the beginning and 305.7 MB in the end (delta: 104.9 MB). Free memory was 123.5 MB in the beginning and 235.6 MB in the end (delta: -112.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 667]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseAnd at line 83. Possible FailurePath: [L676] int s ; [L677] int tmp ; [L681] s = 8464 [L682] CALL ssl3_accept(s) [L10] int s__info_callback = __VERIFIER_nondet_int(); [L11] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L12] int s__state ; [L13] int s__new_session ; [L14] int s__server ; [L15] int s__version = __VERIFIER_nondet_int(); [L16] int s__type ; [L17] int s__init_num ; [L18] int s__hit = __VERIFIER_nondet_int(); [L19] int s__rwstate ; [L20] int s__init_buf___0 ; [L21] int s__debug = __VERIFIER_nondet_int(); [L22] int s__shutdown ; [L23] int s__cert = __VERIFIER_nondet_int(); [L24] int s__options = __VERIFIER_nondet_int(); [L25] int s__verify_mode = __VERIFIER_nondet_int(); [L26] int s__session__peer = __VERIFIER_nondet_int(); [L27] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L28] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L29] int s__ctx__stats__sess_accept_renegotiate ; [L30] int s__ctx__stats__sess_accept ; [L31] unsigned int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_uint(); [L32] int s__s3__tmp__cert_request ; [L33] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__use_rsa_tmp ; [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int buf ; [L41] unsigned long l ; [L42] unsigned long Time ; [L43] unsigned long tmp ; [L44] int cb ; [L45] long num1 ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int got_new_session ; [L51] int tmp___1 = __VERIFIER_nondet_int(); [L52] int tmp___2 = __VERIFIER_nondet_int(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 ; [L58] long tmp___8 = __VERIFIER_nondet_long(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int tmp___10 = __VERIFIER_nondet_int(); [L61] int blastFlag ; [L62] int __retres67 ; [L65] s__state = initial_state [L66] blastFlag = 0 [L67] tmp = __VERIFIER_nondet_int() [L68] Time = tmp [L69] cb = 0 [L70] ret = -1 [L71] skip = 0 [L72] got_new_session = 0 [L73] COND TRUE s__info_callback != 0 [L74] cb = s__info_callback [L82] s__in_handshake = s__in_handshake + 1 [L83] COND FALSE !(tmp___1 & 12288) [L92] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L287] s__shutdown = 0 [L288] ret = __VERIFIER_nondet_int() [L289] COND TRUE blastFlag == 0 [L290] blastFlag = 1 [L294] COND FALSE !(ret <= 0) [L299] got_new_session = 1 [L300] s__state = 8496 [L301] s__init_num = 0 [L625] COND FALSE !(! s__s3__tmp__reuse_message) [L654] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L305] ret = __VERIFIER_nondet_int() [L306] COND TRUE blastFlag == 1 [L307] blastFlag = 2 [L311] COND FALSE !(ret <= 0) [L316] COND TRUE \read(s__hit) [L317] s__state = 8656 [L321] s__init_num = 0 [L625] COND FALSE !(! s__s3__tmp__reuse_message) [L654] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND TRUE s__state == 8656 [L519] s__session__cipher = s__s3__tmp__new_cipher [L520] COND FALSE !(! tmp___9) [L526] ret = __VERIFIER_nondet_int() [L527] COND TRUE blastFlag == 2 [L528] blastFlag = 3 [L532] COND FALSE !(ret <= 0) [L537] s__state = 8672 [L538] s__init_num = 0 [L539] COND FALSE !(! tmp___10) [L625] COND FALSE !(! s__s3__tmp__reuse_message) [L654] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND TRUE s__state == 8640 [L499] ret = __VERIFIER_nondet_int() [L500] COND TRUE blastFlag == 3 [L501] blastFlag = blastFlag + s__state / s__s3__tmp__next_state___0 [L505] COND FALSE !(ret <= 0) [L510] COND TRUE \read(s__hit) [L511] s__state = 3 [L515] s__init_num = 0 [L625] COND FALSE !(! s__s3__tmp__reuse_message) [L654] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND TRUE s__state == 8448 [L439] COND FALSE !(num1 > 0L) [L452] s__state = s__s3__tmp__next_state___0 [L625] COND FALSE !(! s__s3__tmp__reuse_message) [L654] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND FALSE !(s__state == 8656) [L195] COND FALSE !(s__state == 8657) [L198] COND TRUE s__state == 8672 [L548] ret = __VERIFIER_nondet_int() [L549] COND TRUE blastFlag == 4 [L667] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 146 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 6, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1010 SDtfs, 692 SDslu, 794 SDs, 0 SdLazy, 176 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=825occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 632 NumberOfCodeBlocks, 632 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 435 ConstructedInterpolants, 0 QuantifiedInterpolants, 83605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 240/240 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...