/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 06:56:15,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 06:56:15,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 06:56:15,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 06:56:15,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 06:56:15,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 06:56:15,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 06:56:15,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 06:56:15,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 06:56:15,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 06:56:15,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 06:56:15,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 06:56:15,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 06:56:15,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 06:56:15,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 06:56:15,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 06:56:15,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 06:56:15,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 06:56:15,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 06:56:15,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 06:56:15,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 06:56:15,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 06:56:15,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 06:56:15,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 06:56:15,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 06:56:15,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 06:56:15,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 06:56:15,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 06:56:15,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 06:56:15,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 06:56:15,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 06:56:15,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 06:56:15,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 06:56:15,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 06:56:15,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 06:56:15,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 06:56:15,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 06:56:15,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 06:56:15,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 06:56:15,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 06:56:15,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 06:56:15,276 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 [2020-10-15 06:56:15,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 06:56:15,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 06:56:15,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 06:56:15,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 06:56:15,328 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 06:56:15,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 06:56:15,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 06:56:15,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 06:56:15,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 06:56:15,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 06:56:15,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 06:56:15,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 06:56:15,331 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 06:56:15,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 06:56:15,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 06:56:15,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 06:56:15,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 06:56:15,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 06:56:15,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:56:15,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 06:56:15,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 06:56:15,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 06:56:15,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 06:56:15,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 06:56:15,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 06:56:15,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 06:56:15,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 06:56:15,334 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.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 06:56:15,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 06:56:15,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 06:56:15,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 06:56:15,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 06:56:15,662 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 06:56:15,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2020-10-15 06:56:15,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3af87cec8/6103e9fd189744d18bae618902219699/FLAG2729cbedd [2020-10-15 06:56:16,476 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 06:56:16,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2020-10-15 06:56:16,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3af87cec8/6103e9fd189744d18bae618902219699/FLAG2729cbedd [2020-10-15 06:56:16,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3af87cec8/6103e9fd189744d18bae618902219699 [2020-10-15 06:56:16,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 06:56:16,666 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 06:56:16,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 06:56:16,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 06:56:16,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 06:56:16,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:56:16" (1/1) ... [2020-10-15 06:56:16,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2843db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:16, skipping insertion in model container [2020-10-15 06:56:16,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:56:16" (1/1) ... [2020-10-15 06:56:16,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 06:56:16,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 06:56:18,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:56:18,088 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 06:56:18,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:56:18,641 INFO L208 MainTranslator]: Completed translation [2020-10-15 06:56:18,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18 WrapperNode [2020-10-15 06:56:18,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 06:56:18,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 06:56:18,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 06:56:18,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 06:56:18,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... [2020-10-15 06:56:18,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 06:56:18,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 06:56:18,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 06:56:18,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 06:56:18,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:56:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 06:56:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 06:56:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 06:56:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2020-10-15 06:56:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-15 06:56:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-15 06:56:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-10-15 06:56:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-15 06:56:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-15 06:56:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-15 06:56:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2020-10-15 06:56:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2020-10-15 06:56:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2020-10-15 06:56:19,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2020-10-15 06:56:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 06:56:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 06:56:19,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-15 06:56:19,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-15 06:56:19,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-15 06:56:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 06:56:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 06:56:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 06:56:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-15 06:56:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2020-10-15 06:56:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_cloned [2020-10-15 06:56:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-10-15 06:56:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_mac_header [2020-10-15 06:56:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow_head [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hdr [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_hw_offload_capable [2020-10-15 06:56:19,034 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_insert_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_put_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_put_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_get_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_get_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure vlan_get_tag [2020-10-15 06:56:19,035 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_manage_power [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_wdm_manage_power [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_bind [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_unbind [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_tx_fixup [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_process_dgram [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_rx_fixup [2020-10-15 06:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_suspend [2020-10-15 06:56:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_resume [2020-10-15 06:56:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_driver_init [2020-10-15 06:56:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_driver_exit [2020-10-15 06:56:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2020-10-15 06:56:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_3 [2020-10-15 06:56:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-15 06:56:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 06:56:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_2 [2020-10-15 06:56:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_3 [2020-10-15 06:56:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2020-10-15 06:56:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_7 [2020-10-15 06:56:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_8 [2020-10-15 06:56:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-15 06:56:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-15 06:56:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-15 06:56:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-15 06:56:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2020-10-15 06:56:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-15 06:56:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-15 06:56:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-15 06:56:19,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-15 06:56:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-15 06:56:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-15 06:56:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-15 06:56:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-15 06:56:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-15 06:56:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-15 06:56:19,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-15 06:56:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 06:56:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-15 06:56:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2020-10-15 06:56:19,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-15 06:56:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2020-10-15 06:56:19,048 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2020-10-15 06:56:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_bind_common [2020-10-15 06:56:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_fill_tx_frame [2020-10-15 06:56:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_verify_ndp16 [2020-10-15 06:56:19,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_verify_nth16 [2020-10-15 06:56:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_select_altsetting [2020-10-15 06:56:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2020-10-15 06:56:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-15 06:56:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2020-10-15 06:56:19,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 06:56:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-15 06:56:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-10-15 06:56:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-15 06:56:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-15 06:56:19,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cdc_wdm_register [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2020-10-15 06:56:19,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2020-10-15 06:56:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2020-10-15 06:56:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 06:56:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-15 06:56:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 06:56:19,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 06:56:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2020-10-15 06:56:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 06:56:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 06:56:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 06:56:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-15 06:56:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2020-10-15 06:56:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-15 06:56:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-15 06:56:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2020-10-15 06:56:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-10-15 06:56:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-15 06:56:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-15 06:56:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-10-15 06:56:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-15 06:56:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 06:56:19,057 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2020-10-15 06:56:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2020-10-15 06:56:19,058 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2020-10-15 06:56:19,059 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2020-10-15 06:56:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2020-10-15 06:56:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2020-10-15 06:56:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2020-10-15 06:56:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_2 [2020-10-15 06:56:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_3 [2020-10-15 06:56:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-15 06:56:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_7 [2020-10-15 06:56:19,065 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-15 06:56:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_8 [2020-10-15 06:56:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-15 06:56:19,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-15 06:56:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-15 06:56:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 06:56:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 06:56:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 06:56:19,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 06:56:19,068 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 06:56:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 06:56:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 06:56:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_3 [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-10-15 06:56:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_cloned [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_mac_header [2020-10-15 06:56:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow_head [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hdr [2020-10-15 06:56:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_hw_offload_capable [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_insert_tag [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_put_tag [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_put_tag [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_get_tag [2020-10-15 06:56:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_get_tag [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure vlan_get_tag [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cdc_wdm_register [2020-10-15 06:56:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_select_altsetting [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_bind_common [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_fill_tx_frame [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_verify_nth16 [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_verify_ndp16 [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_manage_power [2020-10-15 06:56:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 06:56:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 06:56:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 06:56:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_wdm_manage_power [2020-10-15 06:56:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_bind [2020-10-15 06:56:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_unbind [2020-10-15 06:56:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 06:56:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_tx_fixup [2020-10-15 06:56:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_process_dgram [2020-10-15 06:56:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 06:56:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-15 06:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_rx_fixup [2020-10-15 06:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_suspend [2020-10-15 06:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2020-10-15 06:56:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_resume [2020-10-15 06:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-15 06:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_driver_init [2020-10-15 06:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_driver_exit [2020-10-15 06:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 06:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 06:56:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 06:56:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-15 06:56:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-15 06:56:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-15 06:56:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2020-10-15 06:56:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-15 06:56:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-15 06:56:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-15 06:56:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-15 06:56:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-15 06:56:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-15 06:56:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-15 06:56:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-15 06:56:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-15 06:56:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 06:56:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 06:56:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 06:56:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 06:56:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 06:56:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 06:56:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 06:56:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 06:56:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 06:56:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 06:56:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 06:56:19,878 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 06:56:20,715 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-15 06:56:21,540 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 06:56:21,540 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 06:56:21,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:56:21 BoogieIcfgContainer [2020-10-15 06:56:21,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 06:56:21,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 06:56:21,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 06:56:21,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 06:56:21,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:56:16" (1/3) ... [2020-10-15 06:56:21,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fa509a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:56:21, skipping insertion in model container [2020-10-15 06:56:21,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:56:18" (2/3) ... [2020-10-15 06:56:21,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fa509a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:56:21, skipping insertion in model container [2020-10-15 06:56:21,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:56:21" (3/3) ... [2020-10-15 06:56:21,572 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2020-10-15 06:56:21,585 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 06:56:21,596 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 06:56:21,615 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 06:56:21,652 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 06:56:21,653 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 06:56:21,653 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 06:56:21,653 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 06:56:21,653 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 06:56:21,653 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 06:56:21,653 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 06:56:21,653 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 06:56:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-10-15 06:56:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-15 06:56:21,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:56:21,725 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:56:21,726 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:56:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:56:21,732 INFO L82 PathProgramCache]: Analyzing trace with hash -538123065, now seen corresponding path program 1 times [2020-10-15 06:56:21,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:56:21,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384599420] [2020-10-15 06:56:21,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:56:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:22,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:22,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:22,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:22,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-15 06:56:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 06:56:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-15 06:56:27,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:27,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:27,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:56:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-15 06:56:27,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 06:56:27,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 06:56:28,343 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:56:28,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:56:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:56:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-15 06:56:28,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:28,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:56:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:56:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:56:28,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:28,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:56:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:56:28,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:28,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:56:28,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:56:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:56:28,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:56:28,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 06:56:28,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 06:56:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:56:28,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:56:28,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 06:56:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:56:28,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:56:28,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 06:56:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 06:56:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:56:28,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:56:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-15 06:56:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:56:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:56:28,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 06:56:28,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 06:56:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:56:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:56:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 06:56:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:56:28,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 06:56:28,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 06:56:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:28,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:56:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:56:28,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:28,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:56:28,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:28,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:28,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:56:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:28,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:28,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:56:28,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:56:28,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:56:28,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:56:28,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:56:28,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:56:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:56:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:56:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:56:28,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:56:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 06:56:28,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384599420] [2020-10-15 06:56:28,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:56:28,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 06:56:28,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123488837] [2020-10-15 06:56:28,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 06:56:28,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:56:28,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 06:56:28,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 06:56:28,868 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 9 states. [2020-10-15 06:56:29,979 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:56:30,928 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-15 06:56:31,869 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2020-10-15 06:56:32,786 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2020-10-15 06:56:33,649 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 347 [2020-10-15 06:56:50,499 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-15 06:56:51,311 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2020-10-15 06:56:54,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:56:54,530 INFO L93 Difference]: Finished difference Result 2535 states and 3454 transitions. [2020-10-15 06:56:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 06:56:54,532 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2020-10-15 06:56:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:56:54,564 INFO L225 Difference]: With dead ends: 2535 [2020-10-15 06:56:54,565 INFO L226 Difference]: Without dead ends: 1775 [2020-10-15 06:56:54,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-10-15 06:56:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-15 06:56:54,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1360. [2020-10-15 06:56:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1360 states. [2020-10-15 06:56:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1756 transitions. [2020-10-15 06:56:54,957 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1756 transitions. Word has length 56 [2020-10-15 06:56:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:56:54,958 INFO L479 AbstractCegarLoop]: Abstraction has 1360 states and 1756 transitions. [2020-10-15 06:56:54,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 06:56:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1756 transitions. [2020-10-15 06:56:54,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-15 06:56:54,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:56:54,965 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:56:54,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 06:56:54,965 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:56:54,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:56:54,966 INFO L82 PathProgramCache]: Analyzing trace with hash 835684502, now seen corresponding path program 1 times [2020-10-15 06:56:54,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:56:54,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360047496] [2020-10-15 06:56:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:56:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:56:55,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:55,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:56:55,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:00,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:00,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 06:57:00,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:57:00,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-15 06:57:00,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:00,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:57:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 06:57:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:57:00,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:00,746 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:57:00,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:00,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:00,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:00,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 06:57:00,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:00,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:00,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:00,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:00,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:00,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:00,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:00,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:57:00,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:00,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:00,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:57:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:00,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:00,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:00,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:57:00,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:57:00,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:00,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:57:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:00,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:00,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:00,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 06:57:00,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:00,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 06:57:00,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:00,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:57:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 06:57:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:00,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 06:57:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:00,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 06:57:01,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 06:57:01,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:57:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 06:57:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-15 06:57:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 06:57:01,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:01,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 06:57:01,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:57:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 06:57:01,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-15 06:57:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:01,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:57:01,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:01,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 06:57:01,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:01,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-15 06:57:01,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:01,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:01,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:57:01,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:01,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:57:01,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:01,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:01,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:57:01,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:01,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:57:01,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 06:57:01,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:01,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:01,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:01,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:01,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:57:01,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:01,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:01,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:01,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-15 06:57:01,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360047496] [2020-10-15 06:57:01,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 06:57:01,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 06:57:01,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395603442] [2020-10-15 06:57:01,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 06:57:01,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:57:01,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 06:57:01,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 06:57:01,264 INFO L87 Difference]: Start difference. First operand 1360 states and 1756 transitions. Second operand 10 states. [2020-10-15 06:57:01,982 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:57:03,181 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-15 06:57:03,900 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:57:04,635 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-15 06:57:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:57:16,291 INFO L93 Difference]: Finished difference Result 3126 states and 4112 transitions. [2020-10-15 06:57:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 06:57:16,292 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2020-10-15 06:57:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:57:16,312 INFO L225 Difference]: With dead ends: 3126 [2020-10-15 06:57:16,312 INFO L226 Difference]: Without dead ends: 1774 [2020-10-15 06:57:16,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-15 06:57:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2020-10-15 06:57:16,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1362. [2020-10-15 06:57:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1362 states. [2020-10-15 06:57:16,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1758 transitions. [2020-10-15 06:57:16,635 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1758 transitions. Word has length 75 [2020-10-15 06:57:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:57:16,635 INFO L479 AbstractCegarLoop]: Abstraction has 1362 states and 1758 transitions. [2020-10-15 06:57:16,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 06:57:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1758 transitions. [2020-10-15 06:57:16,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-15 06:57:16,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:57:16,641 INFO L422 BasicCegarLoop]: trace histogram [6, 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] [2020-10-15 06:57:16,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 06:57:16,642 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:57:16,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:57:16,642 INFO L82 PathProgramCache]: Analyzing trace with hash 651058844, now seen corresponding path program 2 times [2020-10-15 06:57:16,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:57:16,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260359936] [2020-10-15 06:57:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:57:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:16,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:16,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:16,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:21,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:21,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 06:57:21,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:57:21,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 06:57:21,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:21,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:21,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 06:57:21,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 06:57:21,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:57:21,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:22,440 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:57:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:22,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-15 06:57:22,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:22,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:22,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:22,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:22,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:22,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:57:22,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:22,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:22,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:57:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:57:22,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:57:22,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:22,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:22,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:57:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 06:57:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 06:57:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 06:57:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 06:57:22,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 06:57:22,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 06:57:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 06:57:22,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:22,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-15 06:57:22,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 06:57:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 06:57:22,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-15 06:57:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 06:57:22,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:22,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 06:57:22,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 06:57:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 06:57:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:22,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-15 06:57:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:57:22,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 06:57:22,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-15 06:57:22,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:57:22,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 06:57:22,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:22,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:22,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:22,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:22,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:22,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:22,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:57:22,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:22,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:22,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:22,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:23,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:23,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:57:23,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:23,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:57:23,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:23,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:23,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:23,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:23,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:23,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:23,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:23,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:57:23,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:23,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-15 06:57:23,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260359936] [2020-10-15 06:57:23,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 06:57:23,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 06:57:23,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556479342] [2020-10-15 06:57:23,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 06:57:23,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:57:23,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 06:57:23,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:57:23,049 INFO L87 Difference]: Start difference. First operand 1362 states and 1758 transitions. Second operand 12 states. [2020-10-15 06:57:23,804 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:57:25,071 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-15 06:57:25,798 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:57:26,531 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:57:27,292 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-15 06:57:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:57:38,713 INFO L93 Difference]: Finished difference Result 3130 states and 4116 transitions. [2020-10-15 06:57:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 06:57:38,714 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-10-15 06:57:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:57:38,725 INFO L225 Difference]: With dead ends: 3130 [2020-10-15 06:57:38,725 INFO L226 Difference]: Without dead ends: 1776 [2020-10-15 06:57:38,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-10-15 06:57:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2020-10-15 06:57:39,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1364. [2020-10-15 06:57:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2020-10-15 06:57:39,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1760 transitions. [2020-10-15 06:57:39,021 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1760 transitions. Word has length 78 [2020-10-15 06:57:39,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:57:39,021 INFO L479 AbstractCegarLoop]: Abstraction has 1364 states and 1760 transitions. [2020-10-15 06:57:39,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 06:57:39,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1760 transitions. [2020-10-15 06:57:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-15 06:57:39,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:57:39,025 INFO L422 BasicCegarLoop]: trace histogram [9, 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] [2020-10-15 06:57:39,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 06:57:39,025 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:57:39,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:57:39,026 INFO L82 PathProgramCache]: Analyzing trace with hash -106569514, now seen corresponding path program 3 times [2020-10-15 06:57:39,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:57:39,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363226240] [2020-10-15 06:57:39,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:57:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:39,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:39,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:39,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:44,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:44,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 06:57:44,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:57:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 06:57:44,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:44,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:57:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-15 06:57:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 06:57:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:44,793 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:57:44,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:57:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:44,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:44,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:44,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:44,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 06:57:44,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:44,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:44,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:44,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:44,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:44,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:44,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:57:44,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:44,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:44,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:44,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:57:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:44,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:44,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:44,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:57:44,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:57:44,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:44,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:44,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:57:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:44,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:44,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:44,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 06:57:44,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:44,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 06:57:44,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:44,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:57:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 06:57:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:45,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-15 06:57:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 06:57:45,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-15 06:57:45,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:57:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:45,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 06:57:45,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:45,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-15 06:57:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 06:57:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:57:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-15 06:57:45,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:57:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 06:57:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 06:57:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:45,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 06:57:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:57:45,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:45,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 06:57:45,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:45,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-15 06:57:45,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:45,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:57:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:57:45,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:45,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:57:45,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:45,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:45,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:45,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:45,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:57:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:57:45,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:45,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:45,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:45,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:45,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:57:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:57:45,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:45,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:57:45,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:45,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:45,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:45,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:57:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:57:45,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:57:45,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:57:45,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:57:45,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:57:45,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:57:45,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:57:45,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:57:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:57:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:57:45,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:57:45,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:57:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-15 06:57:45,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363226240] [2020-10-15 06:57:45,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 06:57:45,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-15 06:57:45,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375379382] [2020-10-15 06:57:45,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 06:57:45,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:57:45,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 06:57:45,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:57:45,410 INFO L87 Difference]: Start difference. First operand 1364 states and 1760 transitions. Second operand 12 states. [2020-10-15 06:57:46,129 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:57:47,238 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-15 06:57:47,969 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:57:48,697 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:57:49,458 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:57:50,224 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2020-10-15 06:58:02,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:58:02,413 INFO L93 Difference]: Finished difference Result 3134 states and 4120 transitions. [2020-10-15 06:58:02,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 06:58:02,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-10-15 06:58:02,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:58:02,426 INFO L225 Difference]: With dead ends: 3134 [2020-10-15 06:58:02,426 INFO L226 Difference]: Without dead ends: 1778 [2020-10-15 06:58:02,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-10-15 06:58:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2020-10-15 06:58:02,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1366. [2020-10-15 06:58:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2020-10-15 06:58:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1762 transitions. [2020-10-15 06:58:02,930 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1762 transitions. Word has length 81 [2020-10-15 06:58:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:58:02,930 INFO L479 AbstractCegarLoop]: Abstraction has 1366 states and 1762 transitions. [2020-10-15 06:58:02,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 06:58:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1762 transitions. [2020-10-15 06:58:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 06:58:02,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:58:02,936 INFO L422 BasicCegarLoop]: trace histogram [12, 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] [2020-10-15 06:58:02,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 06:58:02,936 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:58:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:58:02,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1566109020, now seen corresponding path program 4 times [2020-10-15 06:58:02,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:58:02,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54552214] [2020-10-15 06:58:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:58:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:03,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:04,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:04,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 06:58:04,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:04,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-15 06:58:04,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:04,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:58:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-15 06:58:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:05,392 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:58:05,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:05,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:05,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:05,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:05,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:05,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-15 06:58:05,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:05,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:05,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:58:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:05,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:05,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:05,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:05,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 06:58:05,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:05,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:05,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:58:05,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:05,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:58:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:05,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:05,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:05,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:58:05,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:05,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:58:05,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:05,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:58:05,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:05,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:58:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:06,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 06:58:06,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:06,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 06:58:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:06,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 06:58:06,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:06,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 06:58:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:06,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 06:58:06,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:06,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:06,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 06:58:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:58:06,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 06:58:06,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 06:58:06,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:06,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:58:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 06:58:06,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:06,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:06,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:58:06,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:06,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:06,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:06,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:58:06,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 06:58:06,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:06,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:06,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:06,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:06,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:06,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:06,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:06,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:58:06,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:06,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-15 06:58:06,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54552214] [2020-10-15 06:58:06,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:58:06,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 06:58:06,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754727010] [2020-10-15 06:58:06,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 06:58:06,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:58:06,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 06:58:06,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 06:58:06,518 INFO L87 Difference]: Start difference. First operand 1366 states and 1762 transitions. Second operand 8 states. [2020-10-15 06:58:07,253 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:58:08,196 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-15 06:58:08,985 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:58:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:58:18,901 INFO L93 Difference]: Finished difference Result 1780 states and 2351 transitions. [2020-10-15 06:58:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 06:58:18,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-15 06:58:18,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:58:18,911 INFO L225 Difference]: With dead ends: 1780 [2020-10-15 06:58:18,911 INFO L226 Difference]: Without dead ends: 1777 [2020-10-15 06:58:18,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 06:58:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2020-10-15 06:58:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1365. [2020-10-15 06:58:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2020-10-15 06:58:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1760 transitions. [2020-10-15 06:58:19,236 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1760 transitions. Word has length 84 [2020-10-15 06:58:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:58:19,237 INFO L479 AbstractCegarLoop]: Abstraction has 1365 states and 1760 transitions. [2020-10-15 06:58:19,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 06:58:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1760 transitions. [2020-10-15 06:58:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 06:58:19,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:58:19,241 INFO L422 BasicCegarLoop]: trace histogram [12, 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] [2020-10-15 06:58:19,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 06:58:19,242 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:58:19,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:58:19,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1304375121, now seen corresponding path program 1 times [2020-10-15 06:58:19,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:58:19,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160292519] [2020-10-15 06:58:19,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:58:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:19,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:19,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:19,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-15 06:58:19,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:19,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-15 06:58:19,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:19,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:58:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-15 06:58:19,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:20,458 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:58:20,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-15 06:58:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:58:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:20,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:58:20,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:58:20,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:58:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:58:20,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:58:20,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:58:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:58:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 06:58:20,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 06:58:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:20,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 06:58:20,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 06:58:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:20,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 06:58:20,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:20,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 06:58:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:58:20,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 06:58:20,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 06:58:20,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:20,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:58:20,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:58:20,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:20,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 06:58:20,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:20,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:20,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:20,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:20,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:20,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:20,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:20,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:21,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:21,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:21,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:21,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:58:21,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:21,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:58:21,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:21,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:21,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:21,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:21,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:21,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:21,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:21,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:21,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:21,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:21,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:21,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:58:21,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:21,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:21,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:21,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:21,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:21,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-15 06:58:21,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160292519] [2020-10-15 06:58:21,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:58:21,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 06:58:21,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855526662] [2020-10-15 06:58:21,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 06:58:21,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:58:21,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 06:58:21,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 06:58:21,062 INFO L87 Difference]: Start difference. First operand 1365 states and 1760 transitions. Second operand 8 states. [2020-10-15 06:58:21,956 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:58:23,059 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2020-10-15 06:58:23,830 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2020-10-15 06:58:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:58:33,661 INFO L93 Difference]: Finished difference Result 1779 states and 2349 transitions. [2020-10-15 06:58:33,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 06:58:33,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-10-15 06:58:33,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:58:33,672 INFO L225 Difference]: With dead ends: 1779 [2020-10-15 06:58:33,672 INFO L226 Difference]: Without dead ends: 1776 [2020-10-15 06:58:33,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 06:58:33,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2020-10-15 06:58:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1364. [2020-10-15 06:58:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1364 states. [2020-10-15 06:58:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1758 transitions. [2020-10-15 06:58:33,984 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1758 transitions. Word has length 85 [2020-10-15 06:58:34,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:58:34,031 INFO L479 AbstractCegarLoop]: Abstraction has 1364 states and 1758 transitions. [2020-10-15 06:58:34,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 06:58:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1758 transitions. [2020-10-15 06:58:34,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 06:58:34,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:58:34,039 INFO L422 BasicCegarLoop]: trace histogram [12, 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] [2020-10-15 06:58:34,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 06:58:34,039 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:58:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:58:34,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1780563711, now seen corresponding path program 1 times [2020-10-15 06:58:34,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:58:34,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500940523] [2020-10-15 06:58:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:58:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:34,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:34,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 06:58:34,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:34,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-15 06:58:34,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:34,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:58:34,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-15 06:58:34,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,256 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:58:35,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:35,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-15 06:58:35,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:58:35,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:35,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:58:35,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:58:35,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:58:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:58:35,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 06:58:35,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:58:35,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:58:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:35,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 06:58:35,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 06:58:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:35,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 06:58:35,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:35,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 06:58:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:35,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 06:58:35,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:35,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:35,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 06:58:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:58:35,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 06:58:35,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 06:58:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:58:35,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 06:58:35,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:35,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:35,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:58:35,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:35,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:58:35,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:58:35,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:35,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:35,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:35,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:35,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:35,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:35,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:58:35,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:35,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:35,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-15 06:58:35,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500940523] [2020-10-15 06:58:35,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:58:35,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 06:58:35,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894815826] [2020-10-15 06:58:35,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 06:58:35,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:58:35,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 06:58:35,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 06:58:35,866 INFO L87 Difference]: Start difference. First operand 1364 states and 1758 transitions. Second operand 8 states. [2020-10-15 06:58:36,632 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:58:37,495 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-15 06:58:38,272 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2020-10-15 06:58:48,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:58:48,038 INFO L93 Difference]: Finished difference Result 1778 states and 2347 transitions. [2020-10-15 06:58:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 06:58:48,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 86 [2020-10-15 06:58:48,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:58:48,048 INFO L225 Difference]: With dead ends: 1778 [2020-10-15 06:58:48,048 INFO L226 Difference]: Without dead ends: 1775 [2020-10-15 06:58:48,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 06:58:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-10-15 06:58:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1363. [2020-10-15 06:58:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-10-15 06:58:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1756 transitions. [2020-10-15 06:58:48,391 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1756 transitions. Word has length 86 [2020-10-15 06:58:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:58:48,392 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1756 transitions. [2020-10-15 06:58:48,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 06:58:48,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1756 transitions. [2020-10-15 06:58:48,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 06:58:48,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:58:48,395 INFO L422 BasicCegarLoop]: trace histogram [12, 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] [2020-10-15 06:58:48,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 06:58:48,396 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:58:48,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:58:48,396 INFO L82 PathProgramCache]: Analyzing trace with hash -637454316, now seen corresponding path program 1 times [2020-10-15 06:58:48,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:58:48,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653498502] [2020-10-15 06:58:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:58:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:49,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:49,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 06:58:49,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:49,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-10-15 06:58:49,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:49,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:58:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:58:49,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-15 06:58:49,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,002 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:58:50,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:58:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:50,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 06:58:50,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:58:50,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:50,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:50,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:58:50,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:58:50,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:58:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:58:50,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:58:50,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:58:50,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:58:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:50,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 06:58:50,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 06:58:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:50,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 06:58:50,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:50,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 06:58:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:58:50,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 06:58:50,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:58:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 06:58:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:58:50,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 06:58:50,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:58:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 06:58:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:58:50,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:58:50,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:58:50,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:58:50,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:58:50,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:50,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:58:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:58:50,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:58:50,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:50,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:58:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:58:50,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:58:50,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:58:50,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:58:50,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:58:50,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:58:50,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:58:50,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:58:50,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:58:50,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:58:50,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:58:50,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:58:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-15 06:58:50,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653498502] [2020-10-15 06:58:50,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:58:50,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 06:58:50,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608518893] [2020-10-15 06:58:50,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 06:58:50,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:58:50,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 06:58:50,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 06:58:50,565 INFO L87 Difference]: Start difference. First operand 1363 states and 1756 transitions. Second operand 8 states. [2020-10-15 06:58:51,269 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:58:52,124 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-15 06:58:52,890 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2020-10-15 06:59:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:11,435 INFO L93 Difference]: Finished difference Result 4849 states and 6393 transitions. [2020-10-15 06:59:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 06:59:11,435 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2020-10-15 06:59:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:11,458 INFO L225 Difference]: With dead ends: 4849 [2020-10-15 06:59:11,459 INFO L226 Difference]: Without dead ends: 3503 [2020-10-15 06:59:11,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-10-15 06:59:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2020-10-15 06:59:11,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 2699. [2020-10-15 06:59:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2020-10-15 06:59:11,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3491 transitions. [2020-10-15 06:59:11,938 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3491 transitions. Word has length 87 [2020-10-15 06:59:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:11,938 INFO L479 AbstractCegarLoop]: Abstraction has 2699 states and 3491 transitions. [2020-10-15 06:59:11,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 06:59:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3491 transitions. [2020-10-15 06:59:11,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 06:59:11,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:11,942 INFO L422 BasicCegarLoop]: trace histogram [12, 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] [2020-10-15 06:59:11,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 06:59:11,942 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:11,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:11,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1713403042, now seen corresponding path program 1 times [2020-10-15 06:59:11,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:11,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196821876] [2020-10-15 06:59:11,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:12,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:12,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:12,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-15 06:59:12,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-10-15 06:59:12,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:12,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:12,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 06:59:12,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:13,565 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:59:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:13,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-15 06:59:13,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:13,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:13,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:59:13,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:13,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:13,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:13,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:59:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:59:13,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 06:59:13,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:13,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:13,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 06:59:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:59:13,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 06:59:13,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:13,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 06:59:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:59:13,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 06:59:13,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:13,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-15 06:59:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:13,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:13,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 06:59:13,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:13,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 06:59:13,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:13,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-15 06:59:13,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:14,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:14,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 06:59:14,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 06:59:14,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:14,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:14,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:14,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:14,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:14,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:14,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:14,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:14,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:14,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:14,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 06:59:14,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:14,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:59:14,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:14,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:14,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:14,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:14,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:14,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:14,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:14,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:14,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-10-15 06:59:14,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196821876] [2020-10-15 06:59:14,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:14,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 06:59:14,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494615176] [2020-10-15 06:59:14,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 06:59:14,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:14,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 06:59:14,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 06:59:14,108 INFO L87 Difference]: Start difference. First operand 2699 states and 3491 transitions. Second operand 8 states. [2020-10-15 06:59:14,812 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:59:15,678 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-15 06:59:16,454 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2020-10-15 06:59:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:26,902 INFO L93 Difference]: Finished difference Result 3498 states and 4638 transitions. [2020-10-15 06:59:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 06:59:26,903 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 88 [2020-10-15 06:59:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:26,920 INFO L225 Difference]: With dead ends: 3498 [2020-10-15 06:59:26,920 INFO L226 Difference]: Without dead ends: 3476 [2020-10-15 06:59:26,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-15 06:59:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2020-10-15 06:59:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 2679. [2020-10-15 06:59:27,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2679 states. [2020-10-15 06:59:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3467 transitions. [2020-10-15 06:59:27,532 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3467 transitions. Word has length 88 [2020-10-15 06:59:27,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:27,532 INFO L479 AbstractCegarLoop]: Abstraction has 2679 states and 3467 transitions. [2020-10-15 06:59:27,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 06:59:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3467 transitions. [2020-10-15 06:59:27,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-15 06:59:27,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:27,539 INFO L422 BasicCegarLoop]: trace histogram [12, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:59:27,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 06:59:27,539 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:27,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:27,539 INFO L82 PathProgramCache]: Analyzing trace with hash 897459613, now seen corresponding path program 1 times [2020-10-15 06:59:27,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:27,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352611047] [2020-10-15 06:59:27,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:27,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:27,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:28,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:32,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:32,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-15 06:59:32,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:59:32,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5121 [2020-10-15 06:59:32,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:32,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 06:59:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:32,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-15 06:59:32,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:33,573 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2020-10-15 06:59:33,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:33,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-15 06:59:33,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:33,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:33,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:33,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:33,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:33,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:33,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:33,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-15 06:59:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:59:33,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 06:59:33,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:33,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 06:59:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:59:33,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 06:59:33,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:33,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-15 06:59:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-15 06:59:33,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 06:59:33,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 06:59:33,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 06:59:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:33,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:33,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:59:33,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:33,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 06:59:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:33,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:59:33,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:33,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:59:33,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:33,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 06:59:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:34,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:34,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 06:59:34,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:34,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 06:59:34,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:34,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 06:59:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 06:59:34,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 06:59:34,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:34,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:34,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:34,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:34,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 06:59:34,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 06:59:34,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:34,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 06:59:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 06:59:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 06:59:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:34,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:34,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:34,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:34,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:34,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:34,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:34,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:34,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:34,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:59:34,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:59:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-15 06:59:34,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352611047] [2020-10-15 06:59:34,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:34,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 06:59:34,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049075062] [2020-10-15 06:59:34,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 06:59:34,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:34,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 06:59:34,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 06:59:34,119 INFO L87 Difference]: Start difference. First operand 2679 states and 3467 transitions. Second operand 9 states. [2020-10-15 06:59:34,854 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2020-10-15 06:59:35,789 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-15 06:59:36,623 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2020-10-15 06:59:42,937 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2020-10-15 06:59:44,731 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 333