/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:52:24,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:52:24,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:52:24,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:52:24,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:52:24,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:52:24,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:52:24,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:52:24,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:52:24,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:52:24,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:52:24,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:52:24,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:52:24,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:52:24,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:52:24,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:52:24,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:52:24,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:52:24,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:52:24,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:52:24,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:52:24,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:52:24,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:52:24,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:52:24,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:52:24,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:52:24,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:52:24,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:52:24,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:52:24,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:52:24,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:52:24,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:52:24,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:52:24,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:52:24,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:52:24,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:52:24,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:52:24,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:52:24,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:52:24,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:52:24,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:52:24,275 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 [2020-09-24 23:52:24,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:52:24,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:52:24,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:52:24,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:52:24,304 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:52:24,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:52:24,305 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:52:24,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:52:24,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:52:24,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:52:24,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:52:24,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:52:24,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:52:24,306 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:52:24,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:52:24,307 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:52:24,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:52:24,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:52:24,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:52:24,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:52:24,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:52:24,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:52:24,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:52:24,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:52:24,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:52:24,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:52:24,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:52:24,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:52:24,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:52:24,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:52:24,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:52:24,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:52:24,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:52:24,823 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:52:24,824 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:52:24,825 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-2.i [2020-09-24 23:52:24,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5247e7bc2/262b5447c83b46f8bb379d499f8e7480/FLAG923489032 [2020-09-24 23:52:25,544 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:52:25,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-2.i [2020-09-24 23:52:25,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5247e7bc2/262b5447c83b46f8bb379d499f8e7480/FLAG923489032 [2020-09-24 23:52:25,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5247e7bc2/262b5447c83b46f8bb379d499f8e7480 [2020-09-24 23:52:25,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:52:25,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:52:25,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:52:25,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:52:25,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:52:25,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19214a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:25, skipping insertion in model container [2020-09-24 23:52:25,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:52:25" (1/1) ... [2020-09-24 23:52:25,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:52:25,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:52:26,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:52:26,442 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:52:26,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:52:26,622 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:52:26,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26 WrapperNode [2020-09-24 23:52:26,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:52:26,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:52:26,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:52:26,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:52:26,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (1/1) ... [2020-09-24 23:52:26,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:52:26,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:52:26,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:52:26,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:52:26,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (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 [2020-09-24 23:52:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:52:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:52:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 23:52:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 23:52:26,809 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 23:52:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 23:52:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-24 23:52:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-24 23:52:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-24 23:52:26,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-24 23:52:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-24 23:52:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-24 23:52:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-24 23:52:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-24 23:52:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-24 23:52:26,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 23:52:26,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-24 23:52:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-24 23:52:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-24 23:52:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-24 23:52:26,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:52:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 23:52:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 23:52:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 23:52:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 23:52:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 23:52:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 23:52:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 23:52:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 23:52:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 23:52:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 23:52:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 23:52:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 23:52:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 23:52:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 23:52:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 23:52:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 23:52:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 23:52:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 23:52:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 23:52:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 23:52:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 23:52:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 23:52:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 23:52:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 23:52:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 23:52:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 23:52:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 23:52:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 23:52:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 23:52:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 23:52:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 23:52:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 23:52:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 23:52:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 23:52:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 23:52:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 23:52:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 23:52:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 23:52:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 23:52:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 23:52:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 23:52:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 23:52:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 23:52:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 23:52:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 23:52:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 23:52:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:52:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 23:52:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 23:52:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:52:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 23:52:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 23:52:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 23:52:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 23:52:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 23:52:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 23:52:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 23:52:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 23:52:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 23:52:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 23:52:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 23:52:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 23:52:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 23:52:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 23:52:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 23:52:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 23:52:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 23:52:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 23:52:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 23:52:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 23:52:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 23:52:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 23:52:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 23:52:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 23:52:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 23:52:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 23:52:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 23:52:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 23:52:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 23:52:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 23:52:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 23:52:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 23:52:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 23:52:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 23:52:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 23:52:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 23:52:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:52:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 23:52:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:52:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-24 23:52:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-24 23:52:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:52:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-24 23:52:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-24 23:52:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-24 23:52:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:52:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-24 23:52:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-24 23:52:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-24 23:52:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-24 23:52:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 23:52:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-24 23:52:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-24 23:52:26,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-24 23:52:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:52:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:52:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:52:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-24 23:52:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:52:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:52:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:52:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 23:52:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:52:27,597 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:52:27,598 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 23:52:27,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:27 BoogieIcfgContainer [2020-09-24 23:52:27,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:52:27,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:52:27,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:52:27,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:52:27,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:52:25" (1/3) ... [2020-09-24 23:52:27,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1dd744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:27, skipping insertion in model container [2020-09-24 23:52:27,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:52:26" (2/3) ... [2020-09-24 23:52:27,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1dd744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:52:27, skipping insertion in model container [2020-09-24 23:52:27,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:52:27" (3/3) ... [2020-09-24 23:52:27,614 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-2.i [2020-09-24 23:52:27,625 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:52:27,637 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:52:27,657 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:52:27,688 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:52:27,688 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:52:27,688 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:52:27,689 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:52:27,689 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:52:27,689 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:52:27,689 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:52:27,689 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:52:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-09-24 23:52:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 23:52:27,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:27,723 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:52:27,724 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:27,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:27,732 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-09-24 23:52:27,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:27,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122754209] [2020-09-24 23:52:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:28,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:52:28,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:28,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-09-24 23:52:28,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:28,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 23:52:28,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:28,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:52:28,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:28,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:28,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:52:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:28,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:28,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:52:28,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 23:52:28,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:52:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:28,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:28,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 23:52:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:52:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:52:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:28,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:28,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:28,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:28,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:52:28,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:28,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:28,740 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 23:52:28,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122754209] [2020-09-24 23:52:28,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:52:28,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 23:52:28,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114918136] [2020-09-24 23:52:28,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:52:28,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:28,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:52:28,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:52:28,777 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-09-24 23:52:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:29,379 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-09-24 23:52:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:52:29,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 23:52:29,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:29,399 INFO L225 Difference]: With dead ends: 184 [2020-09-24 23:52:29,399 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 23:52:29,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:52:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 23:52:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-24 23:52:29,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 23:52:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-09-24 23:52:29,506 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-09-24 23:52:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:29,507 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-09-24 23:52:29,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:52:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-09-24 23:52:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-24 23:52:29,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:29,515 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 23:52:29,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:52:29,515 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:29,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:29,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-09-24 23:52:29,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:29,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604773255] [2020-09-24 23:52:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:29,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:29,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:33,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:33,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:52:33,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:52:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4180 [2020-09-24 23:52:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 23:52:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 23:52:33,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:52:33,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:52:33,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:33,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:33,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:33,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:33,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:33,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 23:52:33,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:33,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:52:33,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:33,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 23:52:34,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-24 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:52:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:52:34,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:52:34,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:34,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:52:34,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 23:52:34,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:52:34,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:34,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 23:52:34,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 23:52:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:34,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:34,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:34,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:34,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:34,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:52:34,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:34,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:34,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 23:52:34,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:34,448 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:52:34,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604773255] [2020-09-24 23:52:34,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:52:34,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:52:34,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478791290] [2020-09-24 23:52:34,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:52:34,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:34,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:52:34,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:52:34,455 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 13 states. [2020-09-24 23:52:36,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:36,187 INFO L93 Difference]: Finished difference Result 180 states and 191 transitions. [2020-09-24 23:52:36,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 23:52:36,188 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-09-24 23:52:36,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:36,190 INFO L225 Difference]: With dead ends: 180 [2020-09-24 23:52:36,190 INFO L226 Difference]: Without dead ends: 110 [2020-09-24 23:52:36,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 23:52:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-24 23:52:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2020-09-24 23:52:36,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 23:52:36,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-24 23:52:36,207 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 53 [2020-09-24 23:52:36,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:36,207 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-24 23:52:36,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:52:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-24 23:52:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 23:52:36,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:36,211 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:52:36,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:52:36,211 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:36,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:36,212 INFO L82 PathProgramCache]: Analyzing trace with hash 976010630, now seen corresponding path program 1 times [2020-09-24 23:52:36,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:36,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960061956] [2020-09-24 23:52:36,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:36,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:37,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:37,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 23:52:37,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:37,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1608 [2020-09-24 23:52:37,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 23:52:37,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 23:52:37,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 23:52:37,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:37,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:37,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:37,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:37,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:37,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:52:37,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:37,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:38,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:38,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:38,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:38,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:52:38,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:38,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-09-24 23:52:38,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:52:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:38,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 23:52:38,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:38,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:38,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:38,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:38,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:52:38,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:38,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:38,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 23:52:38,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:38,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 23:52:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:52:39,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:52:39,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:52:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:52:39,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:39,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:52:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:52:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:52:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:39,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 23:52:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 23:52:39,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 23:52:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:52:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:52:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:39,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:52:39,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:39,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 23:52:39,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:52:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:52:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:39,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 23:52:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:39,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:39,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:39,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:39,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:39,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 23:52:39,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:52:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:52:39,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:52:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 23:52:40,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960061956] [2020-09-24 23:52:40,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:40,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-09-24 23:52:40,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879639005] [2020-09-24 23:52:40,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-24 23:52:40,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:40,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-24 23:52:40,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=594, Unknown=0, NotChecked=0, Total=650 [2020-09-24 23:52:40,135 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 26 states. [2020-09-24 23:52:42,845 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-09-24 23:52:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:43,478 INFO L93 Difference]: Finished difference Result 113 states and 115 transitions. [2020-09-24 23:52:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 23:52:43,479 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 83 [2020-09-24 23:52:43,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:43,481 INFO L225 Difference]: With dead ends: 113 [2020-09-24 23:52:43,481 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 23:52:43,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=430, Invalid=2876, Unknown=0, NotChecked=0, Total=3306 [2020-09-24 23:52:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 23:52:43,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2020-09-24 23:52:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 23:52:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2020-09-24 23:52:43,505 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 83 [2020-09-24 23:52:43,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:43,505 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2020-09-24 23:52:43,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-24 23:52:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2020-09-24 23:52:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 23:52:43,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:43,512 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 23:52:43,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:52:43,512 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:43,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:43,512 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-09-24 23:52:43,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:43,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107196473] [2020-09-24 23:52:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:43,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:43,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:43,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 23:52:43,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:43,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 23:52:43,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:43,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:43,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-09-24 23:52:43,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:43,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:43,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:43,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:43,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:43,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:43,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:52:43,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:43,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:43,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:43,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:43,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:43,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:43,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:52:43,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:43,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 23:52:43,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:43,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:43,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:43,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:43,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:52:43,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:43,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 23:52:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:43,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:43,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:52:43,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:43,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:52:43,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:43,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:43,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:43,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:43,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:43,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:43,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:43,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:52:43,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:43,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:52:43,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:43,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:43,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 23:52:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:44,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:44,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:44,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 23:52:44,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:44,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:52:44,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:44,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:44,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:44,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:52:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:44,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:52:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:52:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:52:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:44,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-09-24 23:52:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:44,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:44,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:44,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 23:52:44,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:44,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:52:44,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:44,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:52:44,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:44,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:52:44,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 23:52:44,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107196473] [2020-09-24 23:52:44,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:52:44,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:52:44,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129749448] [2020-09-24 23:52:44,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:52:44,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:52:44,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:52:44,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:52:44,116 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 8 states. [2020-09-24 23:52:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:52:44,440 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2020-09-24 23:52:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:52:44,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-09-24 23:52:44,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:52:44,444 INFO L225 Difference]: With dead ends: 101 [2020-09-24 23:52:44,444 INFO L226 Difference]: Without dead ends: 92 [2020-09-24 23:52:44,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:52:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-24 23:52:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-24 23:52:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-24 23:52:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2020-09-24 23:52:44,456 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 86 [2020-09-24 23:52:44,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:52:44,457 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2020-09-24 23:52:44,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:52:44,457 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2020-09-24 23:52:44,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-24 23:52:44,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:52:44,459 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:52:44,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:52:44,459 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:52:44,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:52:44,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1740877654, now seen corresponding path program 1 times [2020-09-24 23:52:44,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:52:44,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746307398] [2020-09-24 23:52:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:52:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:44,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:45,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:46,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:49,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:49,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 23:52:49,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:52:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-24 23:52:49,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 23:52:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 23:52:49,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 23:52:49,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:52:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:49,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:49,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:49,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:52:49,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:49,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:52:49,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:49,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:52:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:49,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 23:52:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:49,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:51,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:51,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:52:51,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:51,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2189 [2020-09-24 23:52:51,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 23:52:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 23:52:51,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:52:52,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:52:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:52,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:52,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:52,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 23:52:52,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:52,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 23:52:52,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:52:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:52,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:52:52,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:52,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 23:52:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:52,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:52,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:52:52,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 23:52:52,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:52:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:52:52,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:52,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:52,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:52,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:52,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:52:52,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:52:52,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:52:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:52:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:52:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:52,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-24 23:52:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:53,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:52:53,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:52:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 23:52:53,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:52:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-09-24 23:52:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:52:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:52:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:52:53,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:52:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:52:58,754 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 178 DAG size of output: 161 [2020-09-24 23:52:58,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:52:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:52:59,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:53:04,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:53:04,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:53:04,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:53:04,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4686 [2020-09-24 23:53:04,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:53:04,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:53:04,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:53:04,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:53:04,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0