/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:28:30,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:28:30,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:28:30,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:28:30,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:28:30,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:28:30,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:28:30,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:28:30,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:28:30,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:28:30,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:28:30,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:28:30,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:28:30,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:28:30,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:28:30,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:28:30,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:28:30,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:28:30,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:28:30,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:28:30,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:28:30,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:28:30,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:28:30,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:28:30,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:28:30,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:28:30,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:28:30,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:28:30,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:28:30,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:28:30,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:28:30,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:28:30,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:28:30,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:28:30,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:28:30,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:28:30,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:28:30,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:28:30,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:28:30,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:28:30,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:28:30,886 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:28:30,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:28:30,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:28:30,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:28:30,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:28:30,932 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:28:30,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:28:30,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:28:30,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:28:30,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:28:30,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:28:30,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:28:30,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:28:30,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:28:30,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:28:30,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:28:30,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:28:30,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:28:30,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:28:30,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:28:30,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:28:30,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:28:30,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:28:30,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:28:30,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:28:30,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:28:30,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:28:30,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:28:30,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:28:30,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:28:30,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:28:31,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:28:31,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:28:31,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:28:31,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:28:31,427 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:28:31,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-09-21 12:28:31,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa72144c9/407c7a426fa24f8a9fe18ff29fd634e1/FLAG448b556a7 [2020-09-21 12:28:32,209 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:28:32,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-09-21 12:28:32,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa72144c9/407c7a426fa24f8a9fe18ff29fd634e1/FLAG448b556a7 [2020-09-21 12:28:32,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aa72144c9/407c7a426fa24f8a9fe18ff29fd634e1 [2020-09-21 12:28:32,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:28:32,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:28:32,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:28:32,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:28:32,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:28:32,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:28:32" (1/1) ... [2020-09-21 12:28:32,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b8db4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:32, skipping insertion in model container [2020-09-21 12:28:32,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:28:32" (1/1) ... [2020-09-21 12:28:32,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:28:32,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:28:33,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:28:33,296 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:28:33,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:28:33,425 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:28:33,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33 WrapperNode [2020-09-21 12:28:33,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:28:33,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:28:33,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:28:33,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:28:33,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... [2020-09-21 12:28:33,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:28:33,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:28:33,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:28:33,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:28:33,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:28:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:28:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:28:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 12:28:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:28:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 12:28:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:28:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:28:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 12:28:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:28:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:28:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:28:34,974 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:28:34,974 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:28:34,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:34 BoogieIcfgContainer [2020-09-21 12:28:34,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:28:34,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:28:34,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:28:34,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:28:34,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:28:32" (1/3) ... [2020-09-21 12:28:34,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b63de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:28:34, skipping insertion in model container [2020-09-21 12:28:34,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:28:33" (2/3) ... [2020-09-21 12:28:34,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b63de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:28:34, skipping insertion in model container [2020-09-21 12:28:34,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:28:34" (3/3) ... [2020-09-21 12:28:35,001 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label49.c [2020-09-21 12:28:35,013 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:28:35,026 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:28:35,049 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:28:35,090 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:28:35,091 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:28:35,091 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:28:35,091 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:28:35,091 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:28:35,092 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:28:35,092 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:28:35,092 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:28:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 12:28:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-21 12:28:35,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:35,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:35,154 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:35,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:35,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1048845111, now seen corresponding path program 1 times [2020-09-21 12:28:35,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:35,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020238391] [2020-09-21 12:28:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:35,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:36,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 12:28:36,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-09-21 12:28:36,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:36,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-21 12:28:36,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:28:36,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:36,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:36,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:36,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:28:36,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:36,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:36,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:36,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020238391] [2020-09-21 12:28:36,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:28:36,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:28:36,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326892603] [2020-09-21 12:28:36,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:28:36,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:36,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:28:36,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:28:36,892 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-09-21 12:28:38,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:38,431 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-09-21 12:28:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:38,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2020-09-21 12:28:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:38,453 INFO L225 Difference]: With dead ends: 557 [2020-09-21 12:28:38,453 INFO L226 Difference]: Without dead ends: 286 [2020-09-21 12:28:38,462 INFO L675 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 [2020-09-21 12:28:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-21 12:28:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-09-21 12:28:38,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-21 12:28:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 408 transitions. [2020-09-21 12:28:38,551 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 408 transitions. Word has length 113 [2020-09-21 12:28:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:38,552 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 408 transitions. [2020-09-21 12:28:38,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:28:38,553 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 408 transitions. [2020-09-21 12:28:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-21 12:28:38,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:38,558 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:38,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:28:38,561 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:38,562 INFO L82 PathProgramCache]: Analyzing trace with hash -751137862, now seen corresponding path program 1 times [2020-09-21 12:28:38,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:38,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024188353] [2020-09-21 12:28:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:38,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:38,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:38,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:39,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:39,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 12:28:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-21 12:28:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 12:28:39,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 12:28:39,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:28:39,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:39,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:39,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:39,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:39,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:39,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:39,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:39,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:39,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:39,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:28:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:39,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:39,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:39,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:28:39,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:39,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:28:39,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:28:39,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:39,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024188353] [2020-09-21 12:28:39,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:39,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:28:39,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739058289] [2020-09-21 12:28:39,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:28:39,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:39,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:28:39,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:39,943 INFO L87 Difference]: Start difference. First operand 280 states and 408 transitions. Second operand 5 states. [2020-09-21 12:28:41,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:41,287 INFO L93 Difference]: Finished difference Result 834 states and 1238 transitions. [2020-09-21 12:28:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:41,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-09-21 12:28:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:41,296 INFO L225 Difference]: With dead ends: 834 [2020-09-21 12:28:41,296 INFO L226 Difference]: Without dead ends: 560 [2020-09-21 12:28:41,298 INFO L675 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 [2020-09-21 12:28:41,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-21 12:28:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-09-21 12:28:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-09-21 12:28:41,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 774 transitions. [2020-09-21 12:28:41,345 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 774 transitions. Word has length 122 [2020-09-21 12:28:41,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:41,346 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 774 transitions. [2020-09-21 12:28:41,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:28:41,346 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 774 transitions. [2020-09-21 12:28:41,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-21 12:28:41,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:41,351 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:41,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:28:41,351 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:41,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1964219250, now seen corresponding path program 1 times [2020-09-21 12:28:41,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:41,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940308421] [2020-09-21 12:28:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:41,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:41,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:41,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 12:28:42,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:28:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1274 [2020-09-21 12:28:42,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:42,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 12:28:42,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 12:28:42,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:42,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:42,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:42,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:28:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:42,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:42,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:42,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:42,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:42,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 12:28:42,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:28:42,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:28:42,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:42,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940308421] [2020-09-21 12:28:42,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:42,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:28:42,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187631436] [2020-09-21 12:28:42,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:28:42,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:42,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:28:42,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:42,948 INFO L87 Difference]: Start difference. First operand 556 states and 774 transitions. Second operand 5 states. [2020-09-21 12:28:44,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:44,327 INFO L93 Difference]: Finished difference Result 1662 states and 2371 transitions. [2020-09-21 12:28:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:44,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-09-21 12:28:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:44,338 INFO L225 Difference]: With dead ends: 1662 [2020-09-21 12:28:44,338 INFO L226 Difference]: Without dead ends: 1112 [2020-09-21 12:28:44,340 INFO L675 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 [2020-09-21 12:28:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2020-09-21 12:28:44,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 834. [2020-09-21 12:28:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-09-21 12:28:44,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1140 transitions. [2020-09-21 12:28:44,411 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1140 transitions. Word has length 132 [2020-09-21 12:28:44,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:44,412 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1140 transitions. [2020-09-21 12:28:44,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:28:44,412 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1140 transitions. [2020-09-21 12:28:44,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-21 12:28:44,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:44,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:44,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:28:44,419 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:44,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1661715812, now seen corresponding path program 1 times [2020-09-21 12:28:44,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:44,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405263700] [2020-09-21 12:28:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:44,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:44,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 12:28:45,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:28:45,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 12:28:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:45,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:45,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:45,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:45,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:45,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:45,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:45,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:45,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:45,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:45,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:28:45,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-21 12:28:45,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 12:28:45,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:28:45,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405263700] [2020-09-21 12:28:45,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:28:45,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:28:45,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077740288] [2020-09-21 12:28:45,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:45,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:45,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:45,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:45,793 INFO L87 Difference]: Start difference. First operand 834 states and 1140 transitions. Second operand 7 states. [2020-09-21 12:28:47,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:47,272 INFO L93 Difference]: Finished difference Result 2252 states and 3209 transitions. [2020-09-21 12:28:47,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:28:47,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-09-21 12:28:47,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:47,295 INFO L225 Difference]: With dead ends: 2252 [2020-09-21 12:28:47,295 INFO L226 Difference]: Without dead ends: 1424 [2020-09-21 12:28:47,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:28:47,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-09-21 12:28:47,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1402. [2020-09-21 12:28:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2020-09-21 12:28:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1901 transitions. [2020-09-21 12:28:47,401 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1901 transitions. Word has length 141 [2020-09-21 12:28:47,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:47,401 INFO L479 AbstractCegarLoop]: Abstraction has 1402 states and 1901 transitions. [2020-09-21 12:28:47,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:47,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1901 transitions. [2020-09-21 12:28:47,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-21 12:28:47,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:47,409 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:47,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:28:47,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:47,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:47,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1014667477, now seen corresponding path program 1 times [2020-09-21 12:28:47,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:47,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327299939] [2020-09-21 12:28:47,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:47,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:47,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:47,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:48,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-21 12:28:48,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:28:48,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-21 12:28:48,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:48,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:48,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:48,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:28:48,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:48,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:48,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:48,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:48,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:28:48,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:48,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:48,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:48,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:48,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:48,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:28:48,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:48,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:28:48,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:48,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:48,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:48,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:48,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:28:48,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:48,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-21 12:28:48,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 12:28:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:48,841 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:48,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327299939] [2020-09-21 12:28:48,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:48,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:48,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477782849] [2020-09-21 12:28:48,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:48,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:48,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:48,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:48,843 INFO L87 Difference]: Start difference. First operand 1402 states and 1901 transitions. Second operand 7 states. [2020-09-21 12:28:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:50,419 INFO L93 Difference]: Finished difference Result 2814 states and 3849 transitions. [2020-09-21 12:28:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:28:50,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-09-21 12:28:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:50,429 INFO L225 Difference]: With dead ends: 2814 [2020-09-21 12:28:50,429 INFO L226 Difference]: Without dead ends: 1418 [2020-09-21 12:28:50,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:28:50,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2020-09-21 12:28:50,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1412. [2020-09-21 12:28:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2020-09-21 12:28:50,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1835 transitions. [2020-09-21 12:28:50,491 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1835 transitions. Word has length 152 [2020-09-21 12:28:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:50,493 INFO L479 AbstractCegarLoop]: Abstraction has 1412 states and 1835 transitions. [2020-09-21 12:28:50,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1835 transitions. [2020-09-21 12:28:50,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-21 12:28:50,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:50,503 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:28:50,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:28:50,504 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:50,505 INFO L82 PathProgramCache]: Analyzing trace with hash -522572589, now seen corresponding path program 1 times [2020-09-21 12:28:50,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:50,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680868437] [2020-09-21 12:28:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:50,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:51,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:51,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-21 12:28:51,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:28:51,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1070 [2020-09-21 12:28:51,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:51,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:28:51,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:28:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:28:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:51,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:51,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:51,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:51,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:51,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:51,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:28:51,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:51,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:28:51,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:51,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:51,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:51,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:51,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 12:28:51,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 12:28:51,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:51,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 12:28:51,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:28:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:51,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:51,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:51,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:28:51,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 12:28:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 12:28:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 12:28:51,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680868437] [2020-09-21 12:28:51,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:51,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:51,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128913002] [2020-09-21 12:28:51,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:51,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:51,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:51,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:51,940 INFO L87 Difference]: Start difference. First operand 1412 states and 1835 transitions. Second operand 7 states. [2020-09-21 12:28:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:53,255 INFO L93 Difference]: Finished difference Result 3821 states and 5221 transitions. [2020-09-21 12:28:53,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:28:53,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-21 12:28:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:53,272 INFO L225 Difference]: With dead ends: 3821 [2020-09-21 12:28:53,273 INFO L226 Difference]: Without dead ends: 2415 [2020-09-21 12:28:53,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:28:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2020-09-21 12:28:53,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2248. [2020-09-21 12:28:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2248 states. [2020-09-21 12:28:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 2898 transitions. [2020-09-21 12:28:53,367 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 2898 transitions. Word has length 172 [2020-09-21 12:28:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:53,367 INFO L479 AbstractCegarLoop]: Abstraction has 2248 states and 2898 transitions. [2020-09-21 12:28:53,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 2898 transitions. [2020-09-21 12:28:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-21 12:28:53,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:53,377 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-09-21 12:28:53,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:28:53,377 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:53,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:53,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1668372867, now seen corresponding path program 1 times [2020-09-21 12:28:53,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:53,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935364174] [2020-09-21 12:28:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:53,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:53,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:54,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:54,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:54,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-21 12:28:54,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:28:54,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-21 12:28:54,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:54,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:28:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 12:28:54,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:54,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:54,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:54,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:54,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:28:54,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:54,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:54,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:54,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:54,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:54,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:54,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-21 12:28:54,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:54,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:28:54,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:54,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:54,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:28:54,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:54,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 12:28:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:54,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:54,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:54,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 12:28:54,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-21 12:28:54,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:54,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 12:28:54,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-21 12:28:54,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:28:54,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935364174] [2020-09-21 12:28:54,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:54,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:28:54,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634060929] [2020-09-21 12:28:54,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:28:54,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:54,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:28:54,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:28:54,971 INFO L87 Difference]: Start difference. First operand 2248 states and 2898 transitions. Second operand 7 states. [2020-09-21 12:28:56,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:56,770 INFO L93 Difference]: Finished difference Result 4602 states and 6388 transitions. [2020-09-21 12:28:56,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:28:56,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-09-21 12:28:56,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:56,791 INFO L225 Difference]: With dead ends: 4602 [2020-09-21 12:28:56,792 INFO L226 Difference]: Without dead ends: 2360 [2020-09-21 12:28:56,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:28:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2020-09-21 12:28:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2260. [2020-09-21 12:28:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2260 states. [2020-09-21 12:28:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 2848 transitions. [2020-09-21 12:28:56,913 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 2848 transitions. Word has length 196 [2020-09-21 12:28:56,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:56,914 INFO L479 AbstractCegarLoop]: Abstraction has 2260 states and 2848 transitions. [2020-09-21 12:28:56,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:28:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 2848 transitions. [2020-09-21 12:28:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-21 12:28:56,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:28:56,924 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-09-21 12:28:56,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:28:56,924 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:28:56,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:28:56,925 INFO L82 PathProgramCache]: Analyzing trace with hash 859264267, now seen corresponding path program 1 times [2020-09-21 12:28:56,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:28:56,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897635672] [2020-09-21 12:28:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:28:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:57,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:57,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:57,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:58,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:58,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-21 12:28:58,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:28:58,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:28:58,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:58,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:28:58,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-21 12:28:58,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 12:28:58,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:28:58,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:28:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:58,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:58,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:58,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:28:58,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:58,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:28:58,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:58,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:58,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:58,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 12:28:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:58,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:58,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:58,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:28:58,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:28:58,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:28:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:28:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:58,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:28:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:28:58,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:28:58,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:28:58,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 12:28:58,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:28:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:28:58,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:28:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:28:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:28:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-21 12:28:58,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:28:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 12:28:58,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897635672] [2020-09-21 12:28:58,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:28:58,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 12:28:58,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419754162] [2020-09-21 12:28:58,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:28:58,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:28:58,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:28:58,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:28:58,361 INFO L87 Difference]: Start difference. First operand 2260 states and 2848 transitions. Second operand 5 states. [2020-09-21 12:28:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:28:59,735 INFO L93 Difference]: Finished difference Result 5058 states and 6452 transitions. [2020-09-21 12:28:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:28:59,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2020-09-21 12:28:59,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:28:59,736 INFO L225 Difference]: With dead ends: 5058 [2020-09-21 12:28:59,736 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:28:59,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:28:59,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:28:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:28:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:28:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:28:59,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 200 [2020-09-21 12:28:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:28:59,749 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:28:59,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:28:59,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:28:59,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:28:59,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:28:59,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:29:01,355 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 123 [2020-09-21 12:29:01,911 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 123 [2020-09-21 12:29:02,658 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 50 [2020-09-21 12:29:03,045 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 35 [2020-09-21 12:29:03,332 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 35 [2020-09-21 12:29:03,338 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:29:03,339 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-21 12:29:03,339 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:29:03,339 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 12:29:03,339 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 12:29:03,340 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 12:29:03,341 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 12:29:03,342 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 12:29:03,343 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,343 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,343 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,343 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 12:29:03,344 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 12:29:03,346 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 12:29:03,346 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 12:29:03,346 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 12:29:03,346 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 12:29:03,346 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 12:29:03,346 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,347 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,348 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,348 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,348 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 12:29:03,348 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 12:29:03,348 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 12:29:03,348 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,349 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,350 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,350 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,350 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 12:29:03,351 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 12:29:03,351 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 12:29:03,351 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 12:29:03,353 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,354 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 12:29:03,355 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,356 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 12:29:03,357 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,358 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 12:29:03,359 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,360 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,360 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,361 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,361 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,361 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 12:29:03,361 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 12:29:03,361 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 12:29:03,362 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 12:29:03,364 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= ~a8~0 |old(~a8~0)|)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse9 (= ~a7~0 |old(~a7~0)|)) (.cse10 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= ~a20~0 |old(~a20~0)|)) (.cse12 (= ~a16~0 |old(~a16~0)|))) (let ((.cse0 (not (<= 15 |old(~a8~0)|))) (.cse6 (not (= |old(~a8~0)| 13))) (.cse7 (and .cse14 .cse9 .cse10 .cse11 .cse12 (= ~a8~0 13))) (.cse3 (not (= |old(~a20~0)| 1))) (.cse8 (not (<= |old(~a16~0)| 4))) (.cse1 (and .cse14 .cse9 .cse10 .cse11 .cse12 .cse13)) (.cse2 (not (= 0 |old(~a20~0)|))) (.cse4 (and .cse9 .cse10 .cse11 .cse12 .cse13 (= ~a17~0 0))) (.cse5 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse3) (or .cse0 .cse3 .cse1) (or .cse6 .cse7 .cse8 .cse2) (or .cse3 .cse8 .cse1) (or .cse2 .cse4 .cse5)))) [2020-09-21 12:29:03,364 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 12:29:03,364 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 12:29:03,365 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 12:29:03,366 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 12:29:03,367 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 12:29:03,368 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,369 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 12:29:03,370 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 12:29:03,371 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 12:29:03,371 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 12:29:03,371 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 12:29:03,371 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 12:29:03,371 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:29:03,371 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a20~0 1) (<= 5 ~a16~0) (<= 15 ~a8~0)) [2020-09-21 12:29:03,371 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:29:03,371 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:29:03,372 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-09-21 12:29:03,372 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 12:29:03,373 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a17~0 0)) (.cse1 (<= 15 ~a8~0)) (.cse3 (= ~a20~0 0)) (.cse4 (<= ~a16~0 4)) (.cse5 (= ~a8~0 13)) (.cse0 (= ~a20~0 1))) (or (and .cse0 .cse1) (and .cse0 .cse2) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse2) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and .cse4 .cse0) (and .cse3 .cse1) (and .cse3 .cse4 .cse5) (and .cse5 .cse0))) [2020-09-21 12:29:03,373 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 12:29:03,373 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 12:29:03,373 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a17~0 0)) (.cse1 (<= 15 ~a8~0)) (.cse3 (= ~a20~0 0)) (.cse4 (<= ~a16~0 4)) (.cse5 (= ~a8~0 13)) (.cse0 (= ~a20~0 1))) (or (and .cse0 .cse1) (and .cse0 .cse2) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse2) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and .cse4 .cse0) (and .cse3 .cse1) (and .cse3 .cse4 .cse5) (and .cse5 .cse0))) [2020-09-21 12:29:03,373 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 12:29:03,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:29:03 BoogieIcfgContainer [2020-09-21 12:29:03,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:29:03,410 INFO L168 Benchmark]: Toolchain (without parser) took 30938.72 ms. Allocated memory was 146.3 MB in the beginning and 590.9 MB in the end (delta: 444.6 MB). Free memory was 100.4 MB in the beginning and 254.8 MB in the end (delta: -154.4 MB). Peak memory consumption was 426.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:03,411 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:29:03,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 953.73 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 169.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:03,413 INFO L168 Benchmark]: Boogie Preprocessor took 121.76 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:03,416 INFO L168 Benchmark]: RCFGBuilder took 1439.21 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.0 MB in the beginning and 178.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:03,418 INFO L168 Benchmark]: TraceAbstraction took 28413.26 ms. Allocated memory was 235.9 MB in the beginning and 590.9 MB in the end (delta: 354.9 MB). Free memory was 178.0 MB in the beginning and 254.8 MB in the end (delta: -76.8 MB). Peak memory consumption was 414.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:29:03,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 953.73 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 169.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.76 ms. Allocated memory is still 203.9 MB. Free memory was 169.7 MB in the beginning and 164.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1439.21 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.0 MB in the beginning and 178.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28413.26 ms. Allocated memory was 235.9 MB in the beginning and 590.9 MB in the end (delta: 354.9 MB). Free memory was 178.0 MB in the beginning and 254.8 MB in the end (delta: -76.8 MB). Peak memory consumption was 414.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 497]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((a20 == 1 && 15 <= a8) || (a20 == 1 && a17 == 0)) || !(5 <= \old(a16))) || (a20 == 0 && a17 == 0)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || (a16 <= 4 && a20 == 1)) || (a20 == 0 && 15 <= a8)) || ((a20 == 0 && a16 <= 4) && a8 == 13)) || (a8 == 13 && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.6s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 2729 SDslu, 227 SDs, 0 SdLazy, 6044 SolverSat, 916 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2260occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 583 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 92 PreInvPairs, 134 NumberOfFragments, 447 HoareAnnotationTreeSize, 92 FomulaSimplifications, 70090 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3981 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 1228 NumberOfCodeBlocks, 1228 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1220 ConstructedInterpolants, 0 QuantifiedInterpolants, 515118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 325/356 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...