/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:32:01,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:32:01,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:32:01,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:32:01,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:32:01,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:32:01,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:32:01,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:32:01,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:32:01,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:32:01,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:32:01,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:32:01,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:32:01,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:32:01,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:32:01,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:32:01,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:32:01,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:32:01,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:32:01,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:32:01,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:32:01,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:32:01,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:32:01,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:32:01,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:32:01,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:32:01,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:32:01,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:32:01,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:32:01,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:32:01,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:32:01,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:32:01,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:32:01,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:32:01,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:32:01,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:32:01,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:32:01,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:32:01,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:32:01,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:32:01,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:32:01,154 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 [2020-10-26 22:32:01,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:32:01,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:32:01,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:32:01,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:32:01,208 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:32:01,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:32:01,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:32:01,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:32:01,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:32:01,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:32:01,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:32:01,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:32:01,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:32:01,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:32:01,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:32:01,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:32:01,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:32:01,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:32:01,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:32:01,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:32:01,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:32:01,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:32:01,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:32:01,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:32:01,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:32:01,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:32:01,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:32:01,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:32:01,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:32:01,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:32:01,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:32:01,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:32:01,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:32:01,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:32:01,652 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:32:01,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-10-26 22:32:01,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d68acbdc1/bf6157d50eb5423f8d20698ba7e60a91/FLAGd0074c1b2 [2020-10-26 22:32:02,405 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:32:02,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-10-26 22:32:02,429 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d68acbdc1/bf6157d50eb5423f8d20698ba7e60a91/FLAGd0074c1b2 [2020-10-26 22:32:02,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d68acbdc1/bf6157d50eb5423f8d20698ba7e60a91 [2020-10-26 22:32:02,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:32:02,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:32:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:02,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:32:02,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:32:02,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:02" (1/1) ... [2020-10-26 22:32:02,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5ae7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:02, skipping insertion in model container [2020-10-26 22:32:02,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:32:02" (1/1) ... [2020-10-26 22:32:02,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:32:02,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:32:03,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:03,193 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:32:03,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:32:03,322 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:32:03,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03 WrapperNode [2020-10-26 22:32:03,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:32:03,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:32:03,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:32:03,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:32:03,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (1/1) ... [2020-10-26 22:32:03,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:32:03,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:32:03,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:32:03,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:32:03,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (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 [2020-10-26 22:32:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:32:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:32:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:32:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:32:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:32:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:32:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:32:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:32:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:32:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:32:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:32:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:32:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:32:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:32:03,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:32:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:32:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:32:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:32:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:32:05,099 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:32:05,099 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:32:05,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:05 BoogieIcfgContainer [2020-10-26 22:32:05,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:32:05,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:32:05,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:32:05,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:32:05,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:32:02" (1/3) ... [2020-10-26 22:32:05,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253b0f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:05, skipping insertion in model container [2020-10-26 22:32:05,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:32:03" (2/3) ... [2020-10-26 22:32:05,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253b0f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:32:05, skipping insertion in model container [2020-10-26 22:32:05,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:32:05" (3/3) ... [2020-10-26 22:32:05,111 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-10-26 22:32:05,122 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:32:05,128 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:32:05,141 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:32:05,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:32:05,180 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:32:05,180 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:32:05,180 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:32:05,180 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:32:05,180 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:32:05,181 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:32:05,181 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:32:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:32:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-26 22:32:05,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:05,212 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] [2020-10-26 22:32:05,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:05,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:05,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1024523006, now seen corresponding path program 1 times [2020-10-26 22:32:05,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:05,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [764072477] [2020-10-26 22:32:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 22:32:05,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-26 22:32:05,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:05,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 22:32:05,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:32:06,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:06,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:06,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:06,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:06,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:32:06,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:06,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [764072477] [2020-10-26 22:32:06,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:06,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:32:06,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754291789] [2020-10-26 22:32:06,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:32:06,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:06,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:32:06,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:32:06,146 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:32:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:08,011 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:32:08,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:08,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-26 22:32:08,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:08,028 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:32:08,028 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:32:08,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:32:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:32:08,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:32:08,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:32:08,110 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 41 [2020-10-26 22:32:08,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:08,110 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:32:08,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:32:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:32:08,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-26 22:32:08,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:08,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:08,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:32:08,117 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:08,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2028146593, now seen corresponding path program 1 times [2020-10-26 22:32:08,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:08,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849423834] [2020-10-26 22:32:08,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:09,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 853 [2020-10-26 22:32:09,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:32:09,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:09,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:32:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:09,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:32:09,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:09,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:09,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 22:32:09,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:09,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:32:09,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:09,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849423834] [2020-10-26 22:32:09,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:09,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:09,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329999114] [2020-10-26 22:32:09,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:32:09,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:09,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:32:09,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:09,439 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 6 states. [2020-10-26 22:32:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:11,133 INFO L93 Difference]: Finished difference Result 608 states and 834 transitions. [2020-10-26 22:32:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:32:11,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-10-26 22:32:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:11,150 INFO L225 Difference]: With dead ends: 608 [2020-10-26 22:32:11,151 INFO L226 Difference]: Without dead ends: 605 [2020-10-26 22:32:11,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:11,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-26 22:32:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 446. [2020-10-26 22:32:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-26 22:32:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 624 transitions. [2020-10-26 22:32:11,233 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 624 transitions. Word has length 111 [2020-10-26 22:32:11,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:11,234 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 624 transitions. [2020-10-26 22:32:11,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:32:11,234 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 624 transitions. [2020-10-26 22:32:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-26 22:32:11,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:11,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:11,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:32:11,245 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:11,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:11,246 INFO L82 PathProgramCache]: Analyzing trace with hash -759621519, now seen corresponding path program 1 times [2020-10-26 22:32:11,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:11,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092578580] [2020-10-26 22:32:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:11,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:11,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 22:32:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1386 [2020-10-26 22:32:12,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 22:32:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:12,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:12,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:12,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:12,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:12,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:32:12,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:12,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:12,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:32:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-26 22:32:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:12,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:13,055 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:13,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092578580] [2020-10-26 22:32:13,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:32:13,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:32:13,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905520576] [2020-10-26 22:32:13,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:13,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:13,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:13,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:13,061 INFO L87 Difference]: Start difference. First operand 446 states and 624 transitions. Second operand 7 states. [2020-10-26 22:32:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:14,850 INFO L93 Difference]: Finished difference Result 1200 states and 1708 transitions. [2020-10-26 22:32:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:14,853 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 114 [2020-10-26 22:32:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:14,864 INFO L225 Difference]: With dead ends: 1200 [2020-10-26 22:32:14,864 INFO L226 Difference]: Without dead ends: 760 [2020-10-26 22:32:14,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:14,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2020-10-26 22:32:14,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 746. [2020-10-26 22:32:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-26 22:32:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1006 transitions. [2020-10-26 22:32:14,916 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1006 transitions. Word has length 114 [2020-10-26 22:32:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:14,919 INFO L481 AbstractCegarLoop]: Abstraction has 746 states and 1006 transitions. [2020-10-26 22:32:14,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1006 transitions. [2020-10-26 22:32:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-26 22:32:14,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:14,927 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:14,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:32:14,928 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:14,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:14,928 INFO L82 PathProgramCache]: Analyzing trace with hash -391062595, now seen corresponding path program 1 times [2020-10-26 22:32:14,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:14,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927744208] [2020-10-26 22:32:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:32:15,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-26 22:32:15,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:32:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 22:32:15,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:15,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:15,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:15,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:15,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:32:15,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 22:32:15,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:15,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:32:15,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927744208] [2020-10-26 22:32:15,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:15,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:15,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200495409] [2020-10-26 22:32:15,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:15,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:15,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:15,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:15,526 INFO L87 Difference]: Start difference. First operand 746 states and 1006 transitions. Second operand 5 states. [2020-10-26 22:32:17,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:17,199 INFO L93 Difference]: Finished difference Result 1782 states and 2427 transitions. [2020-10-26 22:32:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:17,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-10-26 22:32:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:17,207 INFO L225 Difference]: With dead ends: 1782 [2020-10-26 22:32:17,208 INFO L226 Difference]: Without dead ends: 750 [2020-10-26 22:32:17,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:17,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-10-26 22:32:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 744. [2020-10-26 22:32:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-26 22:32:17,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 968 transitions. [2020-10-26 22:32:17,246 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 968 transitions. Word has length 120 [2020-10-26 22:32:17,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:17,247 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 968 transitions. [2020-10-26 22:32:17,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:17,247 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 968 transitions. [2020-10-26 22:32:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-26 22:32:17,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:17,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:17,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:32:17,253 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash -302907628, now seen corresponding path program 1 times [2020-10-26 22:32:17,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:17,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631585030] [2020-10-26 22:32:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:17,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-26 22:32:18,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1377 [2020-10-26 22:32:18,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:18,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:32:18,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:18,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:18,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:18,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:18,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:32:18,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:18,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:18,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:19,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:19,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:19,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-26 22:32:19,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:19,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:19,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:19,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 22:32:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:19,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631585030] [2020-10-26 22:32:19,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:19,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:19,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92743839] [2020-10-26 22:32:19,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:19,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:19,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:19,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:19,194 INFO L87 Difference]: Start difference. First operand 744 states and 968 transitions. Second operand 7 states. [2020-10-26 22:32:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:21,064 INFO L93 Difference]: Finished difference Result 1800 states and 2417 transitions. [2020-10-26 22:32:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:21,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-10-26 22:32:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:21,072 INFO L225 Difference]: With dead ends: 1800 [2020-10-26 22:32:21,073 INFO L226 Difference]: Without dead ends: 1062 [2020-10-26 22:32:21,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-26 22:32:21,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1044. [2020-10-26 22:32:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-26 22:32:21,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1354 transitions. [2020-10-26 22:32:21,118 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1354 transitions. Word has length 193 [2020-10-26 22:32:21,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:21,118 INFO L481 AbstractCegarLoop]: Abstraction has 1044 states and 1354 transitions. [2020-10-26 22:32:21,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1354 transitions. [2020-10-26 22:32:21,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-26 22:32:21,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:21,122 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:21,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:32:21,123 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:21,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:21,123 INFO L82 PathProgramCache]: Analyzing trace with hash 287956014, now seen corresponding path program 1 times [2020-10-26 22:32:21,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:21,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487051514] [2020-10-26 22:32:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:21,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:21,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:23,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-26 22:32:26,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:26,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4890 [2020-10-26 22:32:26,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:26,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:26,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:26,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:26,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-26 22:32:26,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:26,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:32:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:26,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:26,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:26,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:26,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 66 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:32:26,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487051514] [2020-10-26 22:32:26,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:26,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:26,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851015946] [2020-10-26 22:32:26,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:26,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:26,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:26,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:26,613 INFO L87 Difference]: Start difference. First operand 1044 states and 1354 transitions. Second operand 7 states. [2020-10-26 22:32:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:28,328 INFO L93 Difference]: Finished difference Result 2392 states and 3076 transitions. [2020-10-26 22:32:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:28,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-10-26 22:32:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:28,337 INFO L225 Difference]: With dead ends: 2392 [2020-10-26 22:32:28,338 INFO L226 Difference]: Without dead ends: 1354 [2020-10-26 22:32:28,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-10-26 22:32:28,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1340. [2020-10-26 22:32:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2020-10-26 22:32:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1682 transitions. [2020-10-26 22:32:28,403 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1682 transitions. Word has length 200 [2020-10-26 22:32:28,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:28,403 INFO L481 AbstractCegarLoop]: Abstraction has 1340 states and 1682 transitions. [2020-10-26 22:32:28,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1682 transitions. [2020-10-26 22:32:28,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-26 22:32:28,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:28,409 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:28,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:32:28,409 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:28,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:28,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1892510415, now seen corresponding path program 1 times [2020-10-26 22:32:28,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:28,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098211082] [2020-10-26 22:32:28,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:28,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:28,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:29,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-26 22:32:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2999 [2020-10-26 22:32:31,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:31,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:31,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:31,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:31,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:31,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:31,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:31,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-26 22:32:31,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:31,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:31,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:31,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:31,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-26 22:32:31,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:31,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:32:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:31,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:32,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:32,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:32,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 22:32:32,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:32,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:32,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:32,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:32,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 170 proven. 76 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-26 22:32:32,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098211082] [2020-10-26 22:32:32,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:32,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:32,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087064562] [2020-10-26 22:32:32,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:32,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:32,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:32,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:32,143 INFO L87 Difference]: Start difference. First operand 1340 states and 1682 transitions. Second operand 8 states. [2020-10-26 22:32:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:34,677 INFO L93 Difference]: Finished difference Result 2980 states and 3794 transitions. [2020-10-26 22:32:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:34,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 270 [2020-10-26 22:32:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:34,691 INFO L225 Difference]: With dead ends: 2980 [2020-10-26 22:32:34,691 INFO L226 Difference]: Without dead ends: 1789 [2020-10-26 22:32:34,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2020-10-26 22:32:34,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1634. [2020-10-26 22:32:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-10-26 22:32:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 1933 transitions. [2020-10-26 22:32:34,747 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 1933 transitions. Word has length 270 [2020-10-26 22:32:34,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:34,748 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 1933 transitions. [2020-10-26 22:32:34,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:34,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 1933 transitions. [2020-10-26 22:32:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-26 22:32:34,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:34,754 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:34,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:32:34,755 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:34,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1097060021, now seen corresponding path program 1 times [2020-10-26 22:32:34,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:34,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674983099] [2020-10-26 22:32:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:34,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:34,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:36,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-26 22:32:38,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:38,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3752 [2020-10-26 22:32:38,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:38,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:38,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:38,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:38,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:38,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:38,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:38,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:38,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-26 22:32:38,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:38,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:39,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-26 22:32:39,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:32:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:39,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:39,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:39,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:39,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:39,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-26 22:32:39,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:39,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 177 proven. 76 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-26 22:32:39,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674983099] [2020-10-26 22:32:39,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:39,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:39,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719942735] [2020-10-26 22:32:39,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:39,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:39,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:39,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:39,454 INFO L87 Difference]: Start difference. First operand 1634 states and 1933 transitions. Second operand 7 states. [2020-10-26 22:32:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:41,445 INFO L93 Difference]: Finished difference Result 3574 states and 4328 transitions. [2020-10-26 22:32:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:41,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-26 22:32:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:41,457 INFO L225 Difference]: With dead ends: 3574 [2020-10-26 22:32:41,457 INFO L226 Difference]: Without dead ends: 2089 [2020-10-26 22:32:41,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:41,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-10-26 22:32:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2085. [2020-10-26 22:32:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-10-26 22:32:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 2451 transitions. [2020-10-26 22:32:41,540 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 2451 transitions. Word has length 315 [2020-10-26 22:32:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:41,540 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 2451 transitions. [2020-10-26 22:32:41,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 2451 transitions. [2020-10-26 22:32:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-26 22:32:41,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:41,549 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:41,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:41,549 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:41,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:41,550 INFO L82 PathProgramCache]: Analyzing trace with hash -992170831, now seen corresponding path program 1 times [2020-10-26 22:32:41,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:41,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441572898] [2020-10-26 22:32:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:42,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-10-26 22:32:43,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1662 [2020-10-26 22:32:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:32:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:43,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:43,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:43,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:43,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:43,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:43,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:43,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:43,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:43,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:43,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:32:43,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:43,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:43,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:43,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:43,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:43,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:32:43,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:43,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:32:43,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:32:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:43,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:43,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:43,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:43,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-26 22:32:43,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:43,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:43,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:43,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 257 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-26 22:32:43,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441572898] [2020-10-26 22:32:43,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:43,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:43,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711460250] [2020-10-26 22:32:43,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:43,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:43,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:43,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:43,930 INFO L87 Difference]: Start difference. First operand 2085 states and 2451 transitions. Second operand 7 states. [2020-10-26 22:32:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:45,581 INFO L93 Difference]: Finished difference Result 4325 states and 5154 transitions. [2020-10-26 22:32:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:45,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 334 [2020-10-26 22:32:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:45,601 INFO L225 Difference]: With dead ends: 4325 [2020-10-26 22:32:45,601 INFO L226 Difference]: Without dead ends: 2389 [2020-10-26 22:32:45,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2020-10-26 22:32:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2381. [2020-10-26 22:32:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2381 states. [2020-10-26 22:32:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 2810 transitions. [2020-10-26 22:32:45,698 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 2810 transitions. Word has length 334 [2020-10-26 22:32:45,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:45,699 INFO L481 AbstractCegarLoop]: Abstraction has 2381 states and 2810 transitions. [2020-10-26 22:32:45,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 2810 transitions. [2020-10-26 22:32:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-26 22:32:45,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:45,710 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:45,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:45,710 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:45,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:45,711 INFO L82 PathProgramCache]: Analyzing trace with hash -547343675, now seen corresponding path program 1 times [2020-10-26 22:32:45,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:45,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730438195] [2020-10-26 22:32:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:45,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:45,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-26 22:32:48,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:48,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2234 [2020-10-26 22:32:48,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:32:48,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:32:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:48,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:48,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:32:48,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:48,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:32:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-26 22:32:48,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:32:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:32:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:48,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:48,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:48,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 22:32:48,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:32:48,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730438195] [2020-10-26 22:32:48,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:48,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:48,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962259208] [2020-10-26 22:32:48,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:48,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:48,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:48,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:48,665 INFO L87 Difference]: Start difference. First operand 2381 states and 2810 transitions. Second operand 7 states. [2020-10-26 22:32:50,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:50,793 INFO L93 Difference]: Finished difference Result 5505 states and 6613 transitions. [2020-10-26 22:32:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:50,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-10-26 22:32:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:50,818 INFO L225 Difference]: With dead ends: 5505 [2020-10-26 22:32:50,818 INFO L226 Difference]: Without dead ends: 3273 [2020-10-26 22:32:50,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:50,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2020-10-26 22:32:50,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2973. [2020-10-26 22:32:50,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2973 states. [2020-10-26 22:32:50,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 3479 transitions. [2020-10-26 22:32:50,908 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 3479 transitions. Word has length 344 [2020-10-26 22:32:50,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:50,909 INFO L481 AbstractCegarLoop]: Abstraction has 2973 states and 3479 transitions. [2020-10-26 22:32:50,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 3479 transitions. [2020-10-26 22:32:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-26 22:32:50,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:50,920 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:50,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:50,921 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:50,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:50,921 INFO L82 PathProgramCache]: Analyzing trace with hash 70037201, now seen corresponding path program 1 times [2020-10-26 22:32:50,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:50,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032008965] [2020-10-26 22:32:50,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-26 22:32:51,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 806 [2020-10-26 22:32:51,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-26 22:32:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 22:32:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:51,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:51,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:51,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:51,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:51,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:51,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:51,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:51,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:32:51,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:51,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:52,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:52,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:52,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:52,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:52,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 22:32:52,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:52,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:52,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:32:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:52,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:52,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:52,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 22:32:52,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:52,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 22:32:52,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:52,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:52,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:52,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:32:52,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-26 22:32:52,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032008965] [2020-10-26 22:32:52,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:52,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:52,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873718188] [2020-10-26 22:32:52,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:52,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:52,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:52,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:52,425 INFO L87 Difference]: Start difference. First operand 2973 states and 3479 transitions. Second operand 5 states. [2020-10-26 22:32:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:53,869 INFO L93 Difference]: Finished difference Result 6667 states and 7964 transitions. [2020-10-26 22:32:53,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:53,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 350 [2020-10-26 22:32:53,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:53,889 INFO L225 Difference]: With dead ends: 6667 [2020-10-26 22:32:53,889 INFO L226 Difference]: Without dead ends: 3843 [2020-10-26 22:32:53,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:53,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-26 22:32:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3267. [2020-10-26 22:32:53,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3267 states. [2020-10-26 22:32:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 3894 transitions. [2020-10-26 22:32:53,998 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 3894 transitions. Word has length 350 [2020-10-26 22:32:53,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:53,999 INFO L481 AbstractCegarLoop]: Abstraction has 3267 states and 3894 transitions. [2020-10-26 22:32:53,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:53,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 3894 transitions. [2020-10-26 22:32:54,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-26 22:32:54,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:54,006 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:54,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:54,006 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:54,007 INFO L82 PathProgramCache]: Analyzing trace with hash -61234517, now seen corresponding path program 1 times [2020-10-26 22:32:54,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:54,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595898232] [2020-10-26 22:32:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:54,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:54,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 379 [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3123 [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-26 22:32:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:57,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:57,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:57,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:57,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:57,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:57,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-26 22:32:57,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:57,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:57,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:57,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:57,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:57,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 22:32:57,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:32:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:57,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:57,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:57,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:57,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:32:57,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:57,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:32:57,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 22:32:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 371 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:32:58,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595898232] [2020-10-26 22:32:58,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:58,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 22:32:58,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299135283] [2020-10-26 22:32:58,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 22:32:58,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:58,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 22:32:58,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:32:58,007 INFO L87 Difference]: Start difference. First operand 3267 states and 3894 transitions. Second operand 9 states. [2020-10-26 22:33:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:00,685 INFO L93 Difference]: Finished difference Result 6822 states and 8107 transitions. [2020-10-26 22:33:00,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:33:00,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 363 [2020-10-26 22:33:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:00,703 INFO L225 Difference]: With dead ends: 6822 [2020-10-26 22:33:00,703 INFO L226 Difference]: Without dead ends: 3704 [2020-10-26 22:33:00,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-26 22:33:00,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2020-10-26 22:33:00,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3418. [2020-10-26 22:33:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3418 states. [2020-10-26 22:33:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3418 states to 3418 states and 3976 transitions. [2020-10-26 22:33:00,802 INFO L78 Accepts]: Start accepts. Automaton has 3418 states and 3976 transitions. Word has length 363 [2020-10-26 22:33:00,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:00,802 INFO L481 AbstractCegarLoop]: Abstraction has 3418 states and 3976 transitions. [2020-10-26 22:33:00,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 22:33:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3418 states and 3976 transitions. [2020-10-26 22:33:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-10-26 22:33:00,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:00,811 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:33:00,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:33:00,812 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:00,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:00,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1700102473, now seen corresponding path program 1 times [2020-10-26 22:33:00,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:00,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053219826] [2020-10-26 22:33:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:00,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 397 [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-26 22:33:01,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 22:33:01,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:33:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:01,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:33:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:33:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:33:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:01,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:01,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:01,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-26 22:33:01,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 22:33:01,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:01,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-26 22:33:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:33:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-26 22:33:01,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053219826] [2020-10-26 22:33:01,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:33:01,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:33:01,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790500660] [2020-10-26 22:33:01,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:33:01,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:01,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:33:01,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:33:01,980 INFO L87 Difference]: Start difference. First operand 3418 states and 3976 transitions. Second operand 5 states. [2020-10-26 22:33:03,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:33:03,056 INFO L93 Difference]: Finished difference Result 6557 states and 7627 transitions. [2020-10-26 22:33:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:33:03,057 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 381 [2020-10-26 22:33:03,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:33:03,060 INFO L225 Difference]: With dead ends: 6557 [2020-10-26 22:33:03,060 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:33:03,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:33:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:33:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:33:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:33:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:33:03,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 381 [2020-10-26 22:33:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:33:03,074 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:33:03,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:33:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:33:03,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:33:03,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:33:03,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:33:03,379 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 115 [2020-10-26 22:33:04,058 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 115 [2020-10-26 22:33:04,488 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 51 [2020-10-26 22:33:05,359 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 68 [2020-10-26 22:33:05,694 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 54 [2020-10-26 22:33:06,037 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 51 [2020-10-26 22:33:06,042 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:33:06,043 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:33:06,043 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:33:06,043 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:33:06,043 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:06,043 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:33:06,043 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:33:06,044 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,045 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:33:06,046 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:33:06,047 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L270 CegarLoopResult]: At program point L108(line 108) the Hoare annotation is: (let ((.cse0 (not (= 9 |old(~a19~0)|))) (.cse2 (not (= 0 |old(~a10~0)|))) (.cse3 (not (<= |old(~a1~0)| 206))) (.cse1 (not (<= 1 |old(~a10~0)|)))) (and (or .cse0 .cse1) (or .cse0 .cse2) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse1) (or .cse3 .cse2) (or (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a10~0)| 2)) .cse1) (or .cse3 .cse1 (not (<= |old(~a10~0)| 3))) (or (not (<= 221 |old(~a1~0)|)) (not (= |old(~a10~0)| 1)) (not (= 14 ~a4~0)) (not (= 7 |old(~a19~0)|)) (not (= ~a12~0 0))) (not (= 8 |old(~a19~0)|)))) [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L108-1(line 108) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:33:06,048 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:33:06,049 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,050 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:33:06,051 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,052 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:33:06,053 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,054 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:33:06,055 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,056 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse4 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (not (= 9 |old(~a19~0)|))) (.cse2 (not (= 0 |old(~a10~0)|))) (.cse6 (not (<= |old(~a1~0)| 206))) (.cse0 (and .cse3 (= ~a19~0 |old(~a19~0)|) .cse4)) (.cse5 (not (<= 1 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse0 (not (<= 2 |old(~a10~0)|))) (or (and (= 7 ~a19~0) .cse3 .cse4) (not (<= 221 |old(~a1~0)|)) (not (= |old(~a10~0)| 1)) (not (= 14 ~a4~0)) (not (= 7 |old(~a19~0)|)) (not (= ~a12~0 0))) (or .cse0 .cse1 .cse5) (or .cse0 (not (= 8 |old(~a19~0)|))) (or .cse6 .cse0 .cse2) (or (not (<= 9 |old(~a19~0)|)) .cse0 (not (<= |old(~a10~0)| 2)) .cse5) (or .cse6 .cse0 .cse5 (not (<= |old(~a10~0)| 3)))))) [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:33:06,057 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,058 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:33:06,059 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:33:06,060 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,061 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,062 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,062 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:33:06,062 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:33:06,062 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:33:06,062 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:33:06,062 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:33:06,062 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:33:06,062 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:06,062 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= 1 ~a10~0)) (.cse2 (= ~a19~0 9)) (.cse1 (<= 2 ~a10~0)) (.cse3 (<= ~a1~0 206))) (or (= ~a19~0 8) (and (<= 9 ~a19~0) .cse0 (<= ~a10~0 2)) (and (<= (+ ~a1~0 75821) 0) .cse1) (and (= ~a10~0 0) .cse2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (= ~a10~0 1) (= 7 ~a19~0) (= 14 ~a4~0) (= ~a12~0 0) (<= 221 ~a1~0)) (and .cse0 .cse3 (<= ~a10~0 3)) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse1) (and .cse3 (= ~a10~0 |old(~a10~0)|)))) [2020-10-26 22:33:06,063 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:33:06,063 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:33:06,063 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= 1 ~a10~0)) (.cse2 (= ~a19~0 9)) (.cse1 (<= 2 ~a10~0)) (.cse3 (<= ~a1~0 206))) (or (= ~a19~0 8) (and (<= 9 ~a19~0) .cse0 (<= ~a10~0 2)) (and (<= (+ ~a1~0 75821) 0) .cse1) (and (= ~a10~0 0) .cse2) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and (= ~a10~0 1) (= 7 ~a19~0) (= 14 ~a4~0) (= ~a12~0 0) (<= 221 ~a1~0)) (and .cse0 .cse3 (<= ~a10~0 3)) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse1) (and .cse3 (= ~a10~0 |old(~a10~0)|)))) [2020-10-26 22:33:06,063 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:33:06,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:06 BoogieIcfgContainer [2020-10-26 22:33:06,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:33:06,085 INFO L168 Benchmark]: Toolchain (without parser) took 63445.55 ms. Allocated memory was 154.1 MB in the beginning and 1.0 GB in the end (delta: 861.9 MB). Free memory was 127.7 MB in the beginning and 808.5 MB in the end (delta: -680.8 MB). Peak memory consumption was 605.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:06,085 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 154.1 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:33:06,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.03 ms. Allocated memory is still 154.1 MB. Free memory was 127.2 MB in the beginning and 135.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:06,087 INFO L168 Benchmark]: Boogie Preprocessor took 113.37 ms. Allocated memory is still 154.1 MB. Free memory was 135.0 MB in the beginning and 130.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:06,087 INFO L168 Benchmark]: RCFGBuilder took 1640.56 ms. Allocated memory was 154.1 MB in the beginning and 194.0 MB in the end (delta: 39.8 MB). Free memory was 130.8 MB in the beginning and 152.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:06,088 INFO L168 Benchmark]: TraceAbstraction took 60980.16 ms. Allocated memory was 194.0 MB in the beginning and 1.0 GB in the end (delta: 822.1 MB). Free memory was 151.7 MB in the beginning and 808.5 MB in the end (delta: -656.8 MB). Peak memory consumption was 588.4 MB. Max. memory is 8.0 GB. [2020-10-26 22:33:06,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 154.1 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 700.03 ms. Allocated memory is still 154.1 MB. Free memory was 127.2 MB in the beginning and 135.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.37 ms. Allocated memory is still 154.1 MB. Free memory was 135.0 MB in the beginning and 130.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1640.56 ms. Allocated memory was 154.1 MB in the beginning and 194.0 MB in the end (delta: 39.8 MB). Free memory was 130.8 MB in the beginning and 152.2 MB in the end (delta: -21.4 MB). Peak memory consumption was 84.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 60980.16 ms. Allocated memory was 194.0 MB in the beginning and 1.0 GB in the end (delta: 822.1 MB). Free memory was 151.7 MB in the beginning and 808.5 MB in the end (delta: -656.8 MB). Peak memory consumption was 588.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((a19 == 8 || ((9 <= a19 && 1 <= a10) && a10 <= 2)) || (a1 + 75821 <= 0 && 2 <= a10)) || (a10 == 0 && a19 == 9)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || ((((a10 == 1 && 7 == a19) && 14 == a4) && a12 == 0) && 221 <= a1)) || ((1 <= a10 && a1 <= 206) && a10 <= 3)) || !(0 == \old(a10))) || (a19 == 9 && 2 <= a10)) || (a1 <= 206 && a10 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 57.8s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 24.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 5225 SDslu, 402 SDs, 0 SdLazy, 11417 SolverSat, 1769 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3418occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 1544 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 327 PreInvPairs, 377 NumberOfFragments, 521 HoareAnnotationTreeSize, 327 FomulaSimplifications, 134937 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4507 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 30.5s InterpolantComputationTime, 3136 NumberOfCodeBlocks, 3136 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3123 ConstructedInterpolants, 0 QuantifiedInterpolants, 2003051 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 2555/2832 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...