/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 13:07:03,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 13:07:03,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 13:07:03,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 13:07:03,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 13:07:03,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 13:07:03,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 13:07:03,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 13:07:03,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 13:07:03,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 13:07:03,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 13:07:03,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 13:07:03,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 13:07:03,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 13:07:03,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 13:07:03,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 13:07:03,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 13:07:03,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 13:07:03,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 13:07:03,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 13:07:03,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 13:07:03,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 13:07:03,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 13:07:03,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 13:07:03,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 13:07:03,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 13:07:03,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 13:07:03,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 13:07:03,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 13:07:03,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 13:07:03,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 13:07:03,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 13:07:03,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 13:07:03,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 13:07:03,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 13:07:03,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 13:07:03,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 13:07:04,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 13:07:04,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 13:07:04,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 13:07:04,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 13:07:04,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-21 13:07:04,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 13:07:04,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 13:07:04,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 13:07:04,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 13:07:04,049 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 13:07:04,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 13:07:04,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 13:07:04,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 13:07:04,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 13:07:04,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 13:07:04,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 13:07:04,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 13:07:04,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 13:07:04,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 13:07:04,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 13:07:04,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 13:07:04,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 13:07:04,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 13:07:04,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 13:07:04,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 13:07:04,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 13:07:04,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 13:07:04,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 13:07:04,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 13:07:04,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 13:07:04,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 13:07:04,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-21 13:07:04,055 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 13:07:04,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 13:07:04,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 13:07:04,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 13:07:04,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 13:07:04,520 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 13:07:04,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-21 13:07:04,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/243c1c5d8/29c4cd0ae88749cab470c343bf5a48dd/FLAGf308b5552 [2020-09-21 13:07:05,410 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 13:07:05,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-21 13:07:05,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/243c1c5d8/29c4cd0ae88749cab470c343bf5a48dd/FLAGf308b5552 [2020-09-21 13:07:05,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/243c1c5d8/29c4cd0ae88749cab470c343bf5a48dd [2020-09-21 13:07:05,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 13:07:05,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 13:07:05,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 13:07:05,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 13:07:05,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 13:07:05,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 01:07:05" (1/1) ... [2020-09-21 13:07:05,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b5efc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:05, skipping insertion in model container [2020-09-21 13:07:05,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 01:07:05" (1/1) ... [2020-09-21 13:07:05,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 13:07:06,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 13:07:07,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 13:07:07,441 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 13:07:07,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 13:07:07,718 INFO L208 MainTranslator]: Completed translation [2020-09-21 13:07:07,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07 WrapperNode [2020-09-21 13:07:07,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 13:07:07,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 13:07:07,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 13:07:07,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 13:07:07,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... [2020-09-21 13:07:07,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 13:07:07,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 13:07:07,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 13:07:07,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 13:07:07,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 13:07:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 13:07:08,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 13:07:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-21 13:07:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-21 13:07:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-21 13:07:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-09-21 13:07:08,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-09-21 13:07:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2020-09-21 13:07:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-09-21 13:07:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-09-21 13:07:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-09-21 13:07:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-09-21 13:07:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-09-21 13:07:08,129 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2020-09-21 13:07:08,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 13:07:08,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2020-09-21 13:07:08,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-21 13:07:08,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-21 13:07:08,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-21 13:07:08,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-21 13:07:08,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-21 13:07:08,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-21 13:07:08,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-21 13:07:08,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-21 13:07:08,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-21 13:07:08,134 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-09-21 13:07:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-09-21 13:07:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-09-21 13:07:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-09-21 13:07:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connect_disconnect [2020-09-21 13:07:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_connected [2020-09-21 13:07:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_disconnected [2020-09-21 13:07:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_indication [2020-09-21 13:07:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_data_transmit [2020-09-21 13:07:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_xmit [2020-09-21 13:07:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_open [2020-09-21 13:07:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_close [2020-09-21 13:07:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_rx [2020-09-21 13:07:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_ioctl [2020-09-21 13:07:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-09-21 13:07:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-09-21 13:07:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_1 [2020-09-21 13:07:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 13:07:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-21 13:07:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-21 13:07:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-21 13:07:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-21 13:07:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-21 13:07:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-09-21 13:07:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-21 13:07:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_14 [2020-09-21 13:07:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-21 13:07:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-21 13:07:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-21 13:07:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-21 13:07:08,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-21 13:07:08,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-21 13:07:08,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-21 13:07:08,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-21 13:07:08,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-21 13:07:08,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-21 13:07:08,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-21 13:07:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-21 13:07:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-21 13:07:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-21 13:07:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-21 13:07:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-21 13:07:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-21 13:07:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-09-21 13:07:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-09-21 13:07:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-09-21 13:07:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-09-21 13:07:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-09-21 13:07:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-09-21 13:07:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-09-21 13:07:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-09-21 13:07:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-09-21 13:07:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-09-21 13:07:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-09-21 13:07:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-21 13:07:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-09-21 13:07:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-09-21 13:07:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-09-21 13:07:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-09-21 13:07:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-09-21 13:07:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-21 13:07:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-09-21 13:07:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 13:07:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 13:07:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 13:07:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-21 13:07:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-21 13:07:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-09-21 13:07:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-09-21 13:07:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-21 13:07:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-09-21 13:07:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-09-21 13:07:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-09-21 13:07:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 13:07:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2020-09-21 13:07:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-09-21 13:07:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-09-21 13:07:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 13:07:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-21 13:07:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-09-21 13:07:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-09-21 13:07:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-09-21 13:07:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-09-21 13:07:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 13:07:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-09-21 13:07:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-09-21 13:07:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2020-09-21 13:07:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-21 13:07:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-21 13:07:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-21 13:07:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 13:07:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 13:07:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 13:07:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 13:07:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 13:07:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 13:07:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2020-09-21 13:07:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 13:07:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 13:07:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-21 13:07:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-21 13:07:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-21 13:07:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-21 13:07:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-21 13:07:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-21 13:07:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-21 13:07:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_1 [2020-09-21 13:07:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-21 13:07:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-09-21 13:07:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-09-21 13:07:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-21 13:07:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_14 [2020-09-21 13:07:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-09-21 13:07:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-09-21 13:07:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-21 13:07:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-09-21 13:07:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-09-21 13:07:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-09-21 13:07:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-09-21 13:07:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-09-21 13:07:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-09-21 13:07:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-09-21 13:07:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-09-21 13:07:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-09-21 13:07:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-09-21 13:07:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-09-21 13:07:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 13:07:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure x25_ioctl [2020-09-21 13:07:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connect_disconnect [2020-09-21 13:07:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure x25_connected [2020-09-21 13:07:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure x25_disconnected [2020-09-21 13:07:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_indication [2020-09-21 13:07:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure x25_data_transmit [2020-09-21 13:07:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~netdev_tx_t~0 [2020-09-21 13:07:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure x25_xmit [2020-09-21 13:07:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure x25_open [2020-09-21 13:07:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 13:07:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_close [2020-09-21 13:07:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure x25_rx [2020-09-21 13:07:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-09-21 13:07:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-09-21 13:07:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-09-21 13:07:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-21 13:07:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-21 13:07:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 13:07:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-21 13:07:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-21 13:07:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-21 13:07:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-21 13:07:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-21 13:07:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-21 13:07:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-21 13:07:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-21 13:07:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-21 13:07:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-21 13:07:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-21 13:07:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-21 13:07:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-21 13:07:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 13:07:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 13:07:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 13:07:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-21 13:07:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 13:07:08,890 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-21 13:07:09,846 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 13:07:09,847 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 13:07:09,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 01:07:09 BoogieIcfgContainer [2020-09-21 13:07:09,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 13:07:09,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 13:07:09,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 13:07:09,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 13:07:09,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 01:07:05" (1/3) ... [2020-09-21 13:07:09,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a087fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 01:07:09, skipping insertion in model container [2020-09-21 13:07:09,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 01:07:07" (2/3) ... [2020-09-21 13:07:09,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a087fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 01:07:09, skipping insertion in model container [2020-09-21 13:07:09,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 01:07:09" (3/3) ... [2020-09-21 13:07:09,865 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_x25.ko-entry_point.cil.out.i [2020-09-21 13:07:09,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 13:07:09,888 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 13:07:09,912 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 13:07:09,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 13:07:09,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 13:07:09,948 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 13:07:09,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 13:07:09,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 13:07:09,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 13:07:09,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 13:07:09,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 13:07:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states. [2020-09-21 13:07:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-21 13:07:09,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:09,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:09,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:10,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash 856791813, now seen corresponding path program 1 times [2020-09-21 13:07:10,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:10,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175651684] [2020-09-21 13:07:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:10,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:10,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 13:07:11,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:11,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-21 13:07:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 13:07:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 13:07:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 13:07:11,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:11,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 13:07:11,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:11,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:11,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:11,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 13:07:11,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:11,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:11,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:11,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 13:07:11,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:11,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:11,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:11,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 13:07:11,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:11,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:11,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:11,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 13:07:11,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:11,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 13:07:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:11,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:11,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:11,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:11,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 13:07:11,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 13:07:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:11,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:11,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:11,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:12,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:12,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:12,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:12,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:12,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:12,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 13:07:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:12,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:12,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:12,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:12,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:12,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 13:07:12,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175651684] [2020-09-21 13:07:12,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:12,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 13:07:12,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849335458] [2020-09-21 13:07:12,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 13:07:12,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:12,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 13:07:12,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 13:07:12,104 INFO L87 Difference]: Start difference. First operand 477 states. Second operand 7 states. [2020-09-21 13:07:12,277 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-21 13:07:17,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:17,534 INFO L93 Difference]: Finished difference Result 1386 states and 1837 transitions. [2020-09-21 13:07:17,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 13:07:17,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2020-09-21 13:07:17,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:17,584 INFO L225 Difference]: With dead ends: 1386 [2020-09-21 13:07:17,584 INFO L226 Difference]: Without dead ends: 987 [2020-09-21 13:07:17,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-21 13:07:17,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2020-09-21 13:07:17,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 703. [2020-09-21 13:07:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2020-09-21 13:07:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 845 transitions. [2020-09-21 13:07:17,851 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 845 transitions. Word has length 54 [2020-09-21 13:07:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:17,851 INFO L479 AbstractCegarLoop]: Abstraction has 703 states and 845 transitions. [2020-09-21 13:07:17,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 13:07:17,852 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 845 transitions. [2020-09-21 13:07:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 13:07:17,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:17,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:17,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 13:07:17,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:17,858 INFO L82 PathProgramCache]: Analyzing trace with hash 226580861, now seen corresponding path program 1 times [2020-09-21 13:07:17,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:17,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253580291] [2020-09-21 13:07:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:17,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:18,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:18,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:18,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:18,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 13:07:18,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 13:07:18,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-21 13:07:18,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 13:07:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-21 13:07:18,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 13:07:18,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:19,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 13:07:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:19,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 13:07:19,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 13:07:19,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:19,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 13:07:19,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:19,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:19,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:19,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:19,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:19,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 13:07:19,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 13:07:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:19,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 13:07:19,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 13:07:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 13:07:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 13:07:19,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:19,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:19,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 13:07:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:19,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:19,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:19,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:19,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:19,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:19,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:19,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:19,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 13:07:19,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253580291] [2020-09-21 13:07:19,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:19,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 13:07:19,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483625862] [2020-09-21 13:07:19,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 13:07:19,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:19,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 13:07:19,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 13:07:19,545 INFO L87 Difference]: Start difference. First operand 703 states and 845 transitions. Second operand 9 states. [2020-09-21 13:07:19,668 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-21 13:07:19,892 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-21 13:07:20,655 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-21 13:07:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:23,666 INFO L93 Difference]: Finished difference Result 1673 states and 2075 transitions. [2020-09-21 13:07:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 13:07:23,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2020-09-21 13:07:23,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:23,679 INFO L225 Difference]: With dead ends: 1673 [2020-09-21 13:07:23,680 INFO L226 Difference]: Without dead ends: 986 [2020-09-21 13:07:23,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-21 13:07:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2020-09-21 13:07:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 702. [2020-09-21 13:07:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-09-21 13:07:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 841 transitions. [2020-09-21 13:07:23,797 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 841 transitions. Word has length 58 [2020-09-21 13:07:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:23,798 INFO L479 AbstractCegarLoop]: Abstraction has 702 states and 841 transitions. [2020-09-21 13:07:23,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 13:07:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 841 transitions. [2020-09-21 13:07:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 13:07:23,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:23,805 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-21 13:07:23,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 13:07:23,805 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:23,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1087478551, now seen corresponding path program 1 times [2020-09-21 13:07:23,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:23,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880119606] [2020-09-21 13:07:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:24,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:24,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-21 13:07:24,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:24,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-09-21 13:07:24,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 13:07:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 13:07:24,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-21 13:07:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:24,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:24,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:24,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:24,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:24,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:24,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 13:07:24,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:24,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:24,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:24,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:24,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:24,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:24,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:24,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 13:07:24,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:24,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:24,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:24,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:24,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:24,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:24,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:24,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:24,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 13:07:24,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:24,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:24,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:24,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:24,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:24,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:24,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:24,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:24,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:24,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:24,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:25,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 13:07:25,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 13:07:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:25,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:25,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 13:07:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:25,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 13:07:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:25,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 13:07:25,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:25,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 13:07:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:25,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:25,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 13:07:25,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:25,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 13:07:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 13:07:25,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-21 13:07:25,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:25,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 13:07:25,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:25,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 13:07:25,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 13:07:25,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:25,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:25,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:25,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 13:07:25,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:25,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 13:07:25,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:25,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:25,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 13:07:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:25,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 13:07:25,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 13:07:25,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:25,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:25,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:25,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 13:07:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:25,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:25,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:25,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:25,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:25,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 13:07:25,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 13:07:25,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 13:07:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-09-21 13:07:25,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880119606] [2020-09-21 13:07:25,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:25,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 13:07:25,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151978755] [2020-09-21 13:07:25,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 13:07:25,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:25,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 13:07:25,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-21 13:07:25,856 INFO L87 Difference]: Start difference. First operand 702 states and 841 transitions. Second operand 11 states. [2020-09-21 13:07:26,112 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-09-21 13:07:30,443 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-09-21 13:07:30,591 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-21 13:07:30,730 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-21 13:07:30,929 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-09-21 13:07:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:33,281 INFO L93 Difference]: Finished difference Result 2461 states and 3145 transitions. [2020-09-21 13:07:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 13:07:33,282 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-09-21 13:07:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:33,300 INFO L225 Difference]: With dead ends: 2461 [2020-09-21 13:07:33,300 INFO L226 Difference]: Without dead ends: 1759 [2020-09-21 13:07:33,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-21 13:07:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2020-09-21 13:07:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1485. [2020-09-21 13:07:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2020-09-21 13:07:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1836 transitions. [2020-09-21 13:07:33,490 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1836 transitions. Word has length 108 [2020-09-21 13:07:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:33,492 INFO L479 AbstractCegarLoop]: Abstraction has 1485 states and 1836 transitions. [2020-09-21 13:07:33,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 13:07:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1836 transitions. [2020-09-21 13:07:33,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-09-21 13:07:33,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:33,504 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:33,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 13:07:33,505 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:33,506 INFO L82 PathProgramCache]: Analyzing trace with hash -259596615, now seen corresponding path program 1 times [2020-09-21 13:07:33,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:33,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150595193] [2020-09-21 13:07:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:33,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:33,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:33,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:33,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:34,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:34,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-21 13:07:34,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 13:07:34,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-09-21 13:07:34,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 13:07:34,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 13:07:34,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:34,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:34,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:34,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:34,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:34,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 13:07:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:34,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:34,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:34,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:34,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:34,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 13:07:34,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:34,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:34,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:34,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:34,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:34,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:34,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:34,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 13:07:34,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:34,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:34,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:34,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:34,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:34,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:34,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:34,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:34,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:34,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:35,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:35,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:35,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:35,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 13:07:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 13:07:35,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-21 13:07:35,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 13:07:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:35,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:35,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 13:07:35,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:35,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 13:07:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:35,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 13:07:35,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:35,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 13:07:35,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:35,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 13:07:35,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:35,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 13:07:35,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 13:07:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:35,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:35,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 13:07:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:35,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:35,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 13:07:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 13:07:35,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-21 13:07:35,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-21 13:07:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:35,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 13:07:35,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:35,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 13:07:35,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:35,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 13:07:35,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:35,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 13:07:35,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:35,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:35,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:35,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:35,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:35,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:35,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:35,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:35,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:35,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:35,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:36,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:36,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:36,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:36,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:36,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:36,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:36,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:36,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-21 13:07:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:36,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:36,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:36,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:36,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:36,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:36,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:36,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 13:07:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:36,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:36,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:36,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 13:07:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:36,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:36,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 13:07:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:36,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:36,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:36,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 13:07:36,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-09-21 13:07:36,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150595193] [2020-09-21 13:07:36,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:36,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 13:07:36,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49266782] [2020-09-21 13:07:36,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 13:07:36,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:36,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 13:07:36,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 13:07:36,160 INFO L87 Difference]: Start difference. First operand 1485 states and 1836 transitions. Second operand 10 states. [2020-09-21 13:07:39,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:39,565 INFO L93 Difference]: Finished difference Result 3389 states and 4343 transitions. [2020-09-21 13:07:39,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 13:07:39,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-09-21 13:07:39,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:39,578 INFO L225 Difference]: With dead ends: 3389 [2020-09-21 13:07:39,578 INFO L226 Difference]: Without dead ends: 1920 [2020-09-21 13:07:39,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-09-21 13:07:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2020-09-21 13:07:39,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1583. [2020-09-21 13:07:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1583 states. [2020-09-21 13:07:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 1970 transitions. [2020-09-21 13:07:39,738 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 1970 transitions. Word has length 150 [2020-09-21 13:07:39,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:39,739 INFO L479 AbstractCegarLoop]: Abstraction has 1583 states and 1970 transitions. [2020-09-21 13:07:39,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 13:07:39,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 1970 transitions. [2020-09-21 13:07:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-09-21 13:07:39,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:39,745 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:39,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 13:07:39,745 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:39,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:39,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1453768121, now seen corresponding path program 2 times [2020-09-21 13:07:39,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:39,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817609361] [2020-09-21 13:07:39,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:39,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:40,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:40,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-21 13:07:40,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 13:07:40,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-21 13:07:40,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-21 13:07:40,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 13:07:40,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:40,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:40,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:41,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 13:07:41,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:41,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 13:07:41,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:41,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 13:07:41,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:41,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:41,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:41,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:41,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:41,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 13:07:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:41,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 13:07:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:41,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:41,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:41,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 13:07:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 13:07:41,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-21 13:07:41,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:41,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:41,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 13:07:41,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:41,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:41,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 13:07:41,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:41,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 13:07:41,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:41,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:41,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 13:07:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 13:07:41,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-21 13:07:41,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 13:07:41,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 13:07:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:41,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:41,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 13:07:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:41,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:41,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:41,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:41,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:41,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:41,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:41,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:42,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:42,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 13:07:42,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:42,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 13:07:42,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:42,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:42,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 13:07:42,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 13:07:42,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:42,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:42,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:42,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:42,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:42,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:42,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 13:07:42,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 13:07:42,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 13:07:42,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:42,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-21 13:07:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:42,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:42,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:42,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:42,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:42,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 13:07:42,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:42,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:42,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:42,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:42,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:42,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:42,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 13:07:42,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:42,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 13:07:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:42,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:42,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:42,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:42,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 13:07:42,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-09-21 13:07:42,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817609361] [2020-09-21 13:07:42,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:42,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 13:07:42,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433127203] [2020-09-21 13:07:42,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 13:07:42,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:42,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 13:07:42,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 13:07:42,269 INFO L87 Difference]: Start difference. First operand 1583 states and 1970 transitions. Second operand 10 states. [2020-09-21 13:07:43,821 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-21 13:07:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:45,908 INFO L93 Difference]: Finished difference Result 2719 states and 3579 transitions. [2020-09-21 13:07:45,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 13:07:45,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-09-21 13:07:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:45,921 INFO L225 Difference]: With dead ends: 2719 [2020-09-21 13:07:45,921 INFO L226 Difference]: Without dead ends: 1857 [2020-09-21 13:07:45,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-21 13:07:45,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2020-09-21 13:07:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1587. [2020-09-21 13:07:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1587 states. [2020-09-21 13:07:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 1974 transitions. [2020-09-21 13:07:46,080 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 1974 transitions. Word has length 150 [2020-09-21 13:07:46,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:46,081 INFO L479 AbstractCegarLoop]: Abstraction has 1587 states and 1974 transitions. [2020-09-21 13:07:46,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 13:07:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 1974 transitions. [2020-09-21 13:07:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-21 13:07:46,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:46,089 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:46,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 13:07:46,090 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:46,090 INFO L82 PathProgramCache]: Analyzing trace with hash 94815066, now seen corresponding path program 1 times [2020-09-21 13:07:46,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:46,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007411650] [2020-09-21 13:07:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:46,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:46,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-21 13:07:47,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 13:07:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 13:07:47,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-21 13:07:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 13:07:47,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:47,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 13:07:47,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:47,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:47,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:47,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:47,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:47,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:47,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 13:07:47,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 13:07:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:47,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:47,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:47,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 13:07:47,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 13:07:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 13:07:47,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-21 13:07:47,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 13:07:47,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:47,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 13:07:47,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:47,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:47,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:47,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:47,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:47,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:47,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:47,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:47,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:47,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 13:07:48,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:48,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:48,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 13:07:48,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:48,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 13:07:48,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:48,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:48,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 13:07:48,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:48,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 13:07:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 13:07:48,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-21 13:07:48,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-21 13:07:48,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:48,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 13:07:48,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 13:07:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:48,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 13:07:48,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 13:07:48,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:48,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 13:07:48,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 13:07:48,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:48,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-21 13:07:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:48,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:48,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 13:07:48,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:48,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 13:07:48,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:48,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:48,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-21 13:07:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:48,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:48,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:48,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 13:07:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 13:07:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-09-21 13:07:48,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007411650] [2020-09-21 13:07:48,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 13:07:48,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 13:07:48,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677237248] [2020-09-21 13:07:48,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 13:07:48,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 13:07:48,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 13:07:48,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 13:07:48,633 INFO L87 Difference]: Start difference. First operand 1587 states and 1974 transitions. Second operand 10 states. [2020-09-21 13:07:53,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 13:07:53,853 INFO L93 Difference]: Finished difference Result 5003 states and 6351 transitions. [2020-09-21 13:07:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 13:07:53,854 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-09-21 13:07:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 13:07:53,873 INFO L225 Difference]: With dead ends: 5003 [2020-09-21 13:07:53,873 INFO L226 Difference]: Without dead ends: 3446 [2020-09-21 13:07:53,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-09-21 13:07:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2020-09-21 13:07:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 2867. [2020-09-21 13:07:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2867 states. [2020-09-21 13:07:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 3517 transitions. [2020-09-21 13:07:54,156 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 3517 transitions. Word has length 152 [2020-09-21 13:07:54,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 13:07:54,158 INFO L479 AbstractCegarLoop]: Abstraction has 2867 states and 3517 transitions. [2020-09-21 13:07:54,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 13:07:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 3517 transitions. [2020-09-21 13:07:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-21 13:07:54,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 13:07:54,167 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 13:07:54,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 13:07:54,167 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 13:07:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 13:07:54,167 INFO L82 PathProgramCache]: Analyzing trace with hash 464652536, now seen corresponding path program 1 times [2020-09-21 13:07:54,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 13:07:54,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675932914] [2020-09-21 13:07:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 13:07:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:54,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-21 13:07:55,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 13:07:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-21 13:07:55,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 13:07:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 13:07:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 13:07:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:55,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:55,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 13:07:55,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:55,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:55,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 13:07:55,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:55,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:55,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:55,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:55,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 13:07:55,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 13:07:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 13:07:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 13:07:55,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 13:07:55,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:55,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 13:07:55,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:55,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:55,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 13:07:55,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 13:07:55,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 13:07:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 13:07:55,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 13:07:55,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 13:07:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 13:07:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:55,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:55,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:55,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 13:07:55,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 13:07:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:55,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-21 13:07:56,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-21 13:07:56,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 13:07:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 13:07:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:56,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:56,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 13:07:56,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:56,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:56,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:56,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 13:07:56,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:56,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:56,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 13:07:56,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:56,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:56,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 13:07:56,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:56,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 13:07:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:56,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 13:07:56,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 13:07:56,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:56,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 13:07:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 13:07:56,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 13:07:56,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:56,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 13:07:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 13:07:56,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 13:07:56,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 13:07:56,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 13:07:56,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 13:07:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 13:07:56,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 13:07:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 13:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 13:07:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 13:07:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 13:07:56,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 13:07:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat