/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:00:50,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:00:50,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:00:50,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:00:50,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:00:50,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:00:50,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:00:50,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:00:50,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:00:50,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:00:50,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:00:50,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:00:50,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:00:50,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:00:50,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:00:50,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:00:50,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:00:50,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:00:50,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:00:50,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:00:50,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:00:50,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:00:50,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:00:50,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:00:50,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:00:50,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:00:50,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:00:50,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:00:50,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:00:50,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:00:50,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:00:50,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:00:50,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:00:50,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:00:50,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:00:50,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:00:50,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:00:50,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:00:50,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:00:50,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:00:50,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:00:50,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:00:50,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:00:50,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:00:50,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:00:50,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:00:50,279 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:00:50,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:00:50,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:00:50,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:00:50,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:00:50,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:00:50,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:00:50,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:00:50,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:00:50,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:00:50,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:00:50,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:00:50,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:00:50,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:00:50,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:00:50,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:00:50,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:00:50,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:00:50,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:00:50,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:00:50,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:00:50,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:00:50,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:00:50,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:00:50,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:00:50,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:00:50,738 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:00:50,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2020-12-22 13:00:50,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ba1f0f3/bd921216bbba46759ed5ab7747481048/FLAG49ae28ec5 [2020-12-22 13:00:51,812 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:00:51,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2020-12-22 13:00:51,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ba1f0f3/bd921216bbba46759ed5ab7747481048/FLAG49ae28ec5 [2020-12-22 13:00:52,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ba1f0f3/bd921216bbba46759ed5ab7747481048 [2020-12-22 13:00:52,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:00:52,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:00:52,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:00:52,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:00:52,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:00:52,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:00:52" (1/1) ... [2020-12-22 13:00:52,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4296d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:52, skipping insertion in model container [2020-12-22 13:00:52,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:00:52" (1/1) ... [2020-12-22 13:00:52,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:00:52,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:00:54,413 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2020-12-22 13:00:54,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:00:54,510 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:00:54,967 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2020-12-22 13:00:54,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:00:55,483 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:00:55,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55 WrapperNode [2020-12-22 13:00:55,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:00:55,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:00:55,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:00:55,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:00:55,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:55,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:57,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:00:57,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:00:57,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:00:57,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:00:57,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:57,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:57,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:57,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:58,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:58,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:58,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... [2020-12-22 13:00:59,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:00:59,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:00:59,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:00:59,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:00:59,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 13:00:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:00:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:00:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:00:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:00:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 13:00:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:00:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:00:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:00:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:00:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:00:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:00:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:00:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:00:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:00:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:00:59,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:01:01,621 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 13:01:01,753 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-22 13:01:47,716 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3547: assume !vfio_pci_ioctl_#t~short204;call vfio_pci_ioctl_#t~mem200 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem202 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem200 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem201 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem203 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem201 % 4294967296), 8);vfio_pci_ioctl_#t~short204 := vfio_pci_ioctl_#t~mem202 % 18446744073709551616 != vfio_pci_ioctl_#t~mem203 % 18446744073709551616; [2020-12-22 13:01:47,716 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3546: assume vfio_pci_ioctl_#t~short204; [2020-12-22 13:01:47,718 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4594: assume vfio_pci_ioctl_#t~short204; [2020-12-22 13:01:47,718 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4595: assume !vfio_pci_ioctl_#t~short204;call vfio_pci_ioctl_#t~mem200 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem202 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem200 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem201 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem203 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem201 % 4294967296), 8);vfio_pci_ioctl_#t~short204 := vfio_pci_ioctl_#t~mem202 % 18446744073709551616 != vfio_pci_ioctl_#t~mem203 % 18446744073709551616; [2020-12-22 13:01:47,719 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;call vfio_pci_ioctl_#t~mem205 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem207 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem205 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem206 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem208 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem206 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem207 - vfio_pci_ioctl_#t~mem208), vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);havoc vfio_pci_ioctl_#t~mem205;havoc vfio_pci_ioctl_#t~mem206;havoc vfio_pci_ioctl_#t~mem208;havoc vfio_pci_ioctl_#t~mem207; [2020-12-22 13:01:47,719 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume !vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2020-12-22 13:01:47,720 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-2: call vfio_pci_ioctl_#t~mem209 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2020-12-22 13:01:47,720 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;call vfio_pci_ioctl_#t~mem205 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem207 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem205 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem206 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem208 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem206 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem207 - vfio_pci_ioctl_#t~mem208), vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);havoc vfio_pci_ioctl_#t~mem205;havoc vfio_pci_ioctl_#t~mem206;havoc vfio_pci_ioctl_#t~mem208;havoc vfio_pci_ioctl_#t~mem207; [2020-12-22 13:01:47,720 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume !vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2020-12-22 13:01:47,720 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-5: call vfio_pci_ioctl_#t~mem209 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2020-12-22 13:01:47,721 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume 0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem209;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4); [2020-12-22 13:01:47,721 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume !(0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem209;call write~int(3, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem210 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem211 := read~int(vfio_pci_ioctl_~pdev~2.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem210 % 4294967296)), 8);vfio_pci_ioctl_#t~short213 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem211, 512) % 18446744073709551616; [2020-12-22 13:01:47,721 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume 0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem209;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4); [2020-12-22 13:01:47,721 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume !(0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem209;call write~int(3, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem210 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem211 := read~int(vfio_pci_ioctl_~pdev~2.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem210 % 4294967296)), 8);vfio_pci_ioctl_#t~short213 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem211, 512) % 18446744073709551616; [2020-12-22 13:01:47,721 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume vfio_pci_ioctl_#t~short213;call vfio_pci_ioctl_#t~mem212 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);vfio_pci_ioctl_#t~short213 := vfio_pci_ioctl_#t~mem212 % 18446744073709551616 > 4095; [2020-12-22 13:01:47,722 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume !vfio_pci_ioctl_#t~short213; [2020-12-22 13:01:47,722 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~mem210;call vfio_pci_ioctl_#t~mem214 := read~int(vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem214, 4), vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);havoc vfio_pci_ioctl_#t~mem214; [2020-12-22 13:01:47,722 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume !vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~mem210; [2020-12-22 13:01:47,722 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume vfio_pci_ioctl_#t~short213;call vfio_pci_ioctl_#t~mem212 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);vfio_pci_ioctl_#t~short213 := vfio_pci_ioctl_#t~mem212 % 18446744073709551616 > 4095; [2020-12-22 13:01:47,722 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume !vfio_pci_ioctl_#t~short213; [2020-12-22 13:01:47,722 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~mem210;call vfio_pci_ioctl_#t~mem214 := read~int(vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem214, 4), vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);havoc vfio_pci_ioctl_#t~mem214; [2020-12-22 13:01:47,723 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume !vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~mem210; [2020-12-22 13:01:47,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:01:47,777 INFO L299 CfgBuilder]: Removed 6923 assume(true) statements. [2020-12-22 13:01:47,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:01:47 BoogieIcfgContainer [2020-12-22 13:01:47,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:01:47,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:01:47,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:01:47,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:01:47,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:00:52" (1/3) ... [2020-12-22 13:01:47,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc58a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:01:47, skipping insertion in model container [2020-12-22 13:01:47,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:00:55" (2/3) ... [2020-12-22 13:01:47,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc58a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:01:47, skipping insertion in model container [2020-12-22 13:01:47,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:01:47" (3/3) ... [2020-12-22 13:01:47,795 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2020-12-22 13:01:47,801 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:01:47,809 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 13:01:47,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 13:01:47,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:01:47,882 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:01:47,882 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:01:47,882 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:01:47,882 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:01:47,882 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:01:47,882 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:01:47,882 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:01:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7809 states. [2020-12-22 13:01:48,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 13:01:48,008 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:01:48,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:01:48,011 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:01:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:01:48,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1086763830, now seen corresponding path program 1 times [2020-12-22 13:01:48,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:01:48,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005238477] [2020-12-22 13:01:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:01:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:01:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:01:48,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005238477] [2020-12-22 13:01:48,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:01:48,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:01:48,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070052889] [2020-12-22 13:01:48,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:01:48,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:01:48,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:01:48,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:01:48,882 INFO L87 Difference]: Start difference. First operand 7809 states. Second operand 3 states. [2020-12-22 13:01:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:01:49,380 INFO L93 Difference]: Finished difference Result 15969 states and 23160 transitions. [2020-12-22 13:01:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:01:49,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-22 13:01:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:01:49,455 INFO L225 Difference]: With dead ends: 15969 [2020-12-22 13:01:49,455 INFO L226 Difference]: Without dead ends: 8155 [2020-12-22 13:01:49,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:01:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8155 states. [2020-12-22 13:01:49,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8155 to 8123. [2020-12-22 13:01:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8123 states. [2020-12-22 13:01:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8123 states to 8123 states and 11620 transitions. [2020-12-22 13:01:49,809 INFO L78 Accepts]: Start accepts. Automaton has 8123 states and 11620 transitions. Word has length 32 [2020-12-22 13:01:49,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:01:49,810 INFO L481 AbstractCegarLoop]: Abstraction has 8123 states and 11620 transitions. [2020-12-22 13:01:49,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:01:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8123 states and 11620 transitions. [2020-12-22 13:01:49,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 13:01:49,812 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:01:49,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:01:49,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:01:49,813 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:01:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:01:49,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1709174855, now seen corresponding path program 1 times [2020-12-22 13:01:49,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:01:49,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819300054] [2020-12-22 13:01:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:01:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:01:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:01:50,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819300054] [2020-12-22 13:01:50,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:01:50,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:01:50,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539526473] [2020-12-22 13:01:50,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:01:50,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:01:50,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:01:50,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:01:50,075 INFO L87 Difference]: Start difference. First operand 8123 states and 11620 transitions. Second operand 3 states. [2020-12-22 13:01:51,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:01:51,252 INFO L93 Difference]: Finished difference Result 23816 states and 34225 transitions. [2020-12-22 13:01:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:01:51,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-22 13:01:51,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:01:51,335 INFO L225 Difference]: With dead ends: 23816 [2020-12-22 13:01:51,337 INFO L226 Difference]: Without dead ends: 15696 [2020-12-22 13:01:51,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:01:51,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15696 states. [2020-12-22 13:01:51,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15696 to 15688. [2020-12-22 13:01:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15688 states. [2020-12-22 13:01:51,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15688 states to 15688 states and 22598 transitions. [2020-12-22 13:01:51,861 INFO L78 Accepts]: Start accepts. Automaton has 15688 states and 22598 transitions. Word has length 34 [2020-12-22 13:01:51,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:01:51,861 INFO L481 AbstractCegarLoop]: Abstraction has 15688 states and 22598 transitions. [2020-12-22 13:01:51,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:01:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 15688 states and 22598 transitions. [2020-12-22 13:01:51,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 13:01:51,872 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:01:51,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:01:51,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:01:51,874 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:01:51,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:01:51,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1068528312, now seen corresponding path program 1 times [2020-12-22 13:01:51,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:01:51,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263177151] [2020-12-22 13:01:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:01:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:01:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:01:52,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263177151] [2020-12-22 13:01:52,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:01:52,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:01:52,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618363990] [2020-12-22 13:01:52,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:01:52,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:01:52,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:01:52,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:01:52,484 INFO L87 Difference]: Start difference. First operand 15688 states and 22598 transitions. Second operand 3 states. [2020-12-22 13:01:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:01:53,126 INFO L93 Difference]: Finished difference Result 31389 states and 45225 transitions. [2020-12-22 13:01:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:01:53,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 13:01:53,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:01:53,181 INFO L225 Difference]: With dead ends: 31389 [2020-12-22 13:01:53,181 INFO L226 Difference]: Without dead ends: 15704 [2020-12-22 13:01:53,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:01:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15704 states. [2020-12-22 13:01:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15704 to 15704. [2020-12-22 13:01:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15704 states. [2020-12-22 13:01:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15704 states to 15704 states and 22614 transitions. [2020-12-22 13:01:53,698 INFO L78 Accepts]: Start accepts. Automaton has 15704 states and 22614 transitions. Word has length 124 [2020-12-22 13:01:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:01:53,698 INFO L481 AbstractCegarLoop]: Abstraction has 15704 states and 22614 transitions. [2020-12-22 13:01:53,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:01:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15704 states and 22614 transitions. [2020-12-22 13:01:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 13:01:53,703 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:01:53,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:01:53,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:01:53,704 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:01:53,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:01:53,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1460709686, now seen corresponding path program 1 times [2020-12-22 13:01:53,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:01:53,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383768203] [2020-12-22 13:01:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:01:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:01:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:01:54,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383768203] [2020-12-22 13:01:54,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:01:54,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:01:54,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844106686] [2020-12-22 13:01:54,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:01:54,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:01:54,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:01:54,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:01:54,098 INFO L87 Difference]: Start difference. First operand 15704 states and 22614 transitions. Second operand 4 states. [2020-12-22 13:01:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:01:56,065 INFO L93 Difference]: Finished difference Result 77686 states and 112096 transitions. [2020-12-22 13:01:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:01:56,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2020-12-22 13:01:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:01:56,249 INFO L225 Difference]: With dead ends: 77686 [2020-12-22 13:01:56,250 INFO L226 Difference]: Without dead ends: 61985 [2020-12-22 13:01:56,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:01:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61985 states. [2020-12-22 13:01:57,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61985 to 15708. [2020-12-22 13:01:57,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15708 states. [2020-12-22 13:01:57,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15708 states to 15708 states and 22618 transitions. [2020-12-22 13:01:57,435 INFO L78 Accepts]: Start accepts. Automaton has 15708 states and 22618 transitions. Word has length 124 [2020-12-22 13:01:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:01:57,436 INFO L481 AbstractCegarLoop]: Abstraction has 15708 states and 22618 transitions. [2020-12-22 13:01:57,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:01:57,436 INFO L276 IsEmpty]: Start isEmpty. Operand 15708 states and 22618 transitions. [2020-12-22 13:01:57,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-22 13:01:57,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:01:57,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:01:57,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:01:57,438 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:01:57,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:01:57,439 INFO L82 PathProgramCache]: Analyzing trace with hash 347341648, now seen corresponding path program 1 times [2020-12-22 13:01:57,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:01:57,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567530603] [2020-12-22 13:01:57,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:01:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:01:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:01:57,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567530603] [2020-12-22 13:01:57,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:01:57,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:01:57,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846122112] [2020-12-22 13:01:57,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:01:57,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:01:57,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:01:57,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:01:57,656 INFO L87 Difference]: Start difference. First operand 15708 states and 22618 transitions. Second operand 4 states. [2020-12-22 13:01:59,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:01:59,906 INFO L93 Difference]: Finished difference Result 77746 states and 112152 transitions. [2020-12-22 13:01:59,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:01:59,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-12-22 13:01:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:00,069 INFO L225 Difference]: With dead ends: 77746 [2020-12-22 13:02:00,070 INFO L226 Difference]: Without dead ends: 62041 [2020-12-22 13:02:00,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:00,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62041 states. [2020-12-22 13:02:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62041 to 15712. [2020-12-22 13:02:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15712 states. [2020-12-22 13:02:01,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15712 states to 15712 states and 22622 transitions. [2020-12-22 13:02:01,138 INFO L78 Accepts]: Start accepts. Automaton has 15712 states and 22622 transitions. Word has length 127 [2020-12-22 13:02:01,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:01,138 INFO L481 AbstractCegarLoop]: Abstraction has 15712 states and 22622 transitions. [2020-12-22 13:02:01,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 15712 states and 22622 transitions. [2020-12-22 13:02:01,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-12-22 13:02:01,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:01,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:01,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:02:01,141 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:01,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:01,141 INFO L82 PathProgramCache]: Analyzing trace with hash 38528940, now seen corresponding path program 1 times [2020-12-22 13:02:01,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:01,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310140346] [2020-12-22 13:02:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:01,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310140346] [2020-12-22 13:02:01,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:01,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:01,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279433820] [2020-12-22 13:02:01,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:01,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:01,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:01,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:01,404 INFO L87 Difference]: Start difference. First operand 15712 states and 22622 transitions. Second operand 4 states. [2020-12-22 13:02:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:03,919 INFO L93 Difference]: Finished difference Result 77746 states and 112148 transitions. [2020-12-22 13:02:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:02:03,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2020-12-22 13:02:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:04,263 INFO L225 Difference]: With dead ends: 77746 [2020-12-22 13:02:04,263 INFO L226 Difference]: Without dead ends: 62037 [2020-12-22 13:02:04,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62037 states. [2020-12-22 13:02:05,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62037 to 15716. [2020-12-22 13:02:05,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15716 states. [2020-12-22 13:02:05,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15716 states to 15716 states and 22626 transitions. [2020-12-22 13:02:05,376 INFO L78 Accepts]: Start accepts. Automaton has 15716 states and 22626 transitions. Word has length 129 [2020-12-22 13:02:05,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:05,377 INFO L481 AbstractCegarLoop]: Abstraction has 15716 states and 22626 transitions. [2020-12-22 13:02:05,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 15716 states and 22626 transitions. [2020-12-22 13:02:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-22 13:02:05,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:05,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:05,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:02:05,379 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:05,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1634946294, now seen corresponding path program 1 times [2020-12-22 13:02:05,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:05,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967948138] [2020-12-22 13:02:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:05,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967948138] [2020-12-22 13:02:05,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:05,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:05,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072133016] [2020-12-22 13:02:05,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:05,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:05,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:05,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:05,798 INFO L87 Difference]: Start difference. First operand 15716 states and 22626 transitions. Second operand 4 states. [2020-12-22 13:02:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:08,448 INFO L93 Difference]: Finished difference Result 77750 states and 112148 transitions. [2020-12-22 13:02:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:02:08,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2020-12-22 13:02:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:08,528 INFO L225 Difference]: With dead ends: 77750 [2020-12-22 13:02:08,528 INFO L226 Difference]: Without dead ends: 62037 [2020-12-22 13:02:08,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62037 states. [2020-12-22 13:02:09,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62037 to 15720. [2020-12-22 13:02:09,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15720 states. [2020-12-22 13:02:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 22630 transitions. [2020-12-22 13:02:09,418 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 22630 transitions. Word has length 132 [2020-12-22 13:02:09,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:09,418 INFO L481 AbstractCegarLoop]: Abstraction has 15720 states and 22630 transitions. [2020-12-22 13:02:09,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 22630 transitions. [2020-12-22 13:02:09,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-12-22 13:02:09,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:09,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:09,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 13:02:09,421 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:09,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:09,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1340369784, now seen corresponding path program 1 times [2020-12-22 13:02:09,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:09,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511480695] [2020-12-22 13:02:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:09,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511480695] [2020-12-22 13:02:09,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:09,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:09,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576294221] [2020-12-22 13:02:09,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:09,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:09,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:09,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:09,653 INFO L87 Difference]: Start difference. First operand 15720 states and 22630 transitions. Second operand 4 states. [2020-12-22 13:02:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:12,334 INFO L93 Difference]: Finished difference Result 77758 states and 112152 transitions. [2020-12-22 13:02:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:02:12,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 135 [2020-12-22 13:02:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:12,421 INFO L225 Difference]: With dead ends: 77758 [2020-12-22 13:02:12,422 INFO L226 Difference]: Without dead ends: 62041 [2020-12-22 13:02:12,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:12,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62041 states. [2020-12-22 13:02:13,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62041 to 15724. [2020-12-22 13:02:13,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15724 states. [2020-12-22 13:02:13,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15724 states to 15724 states and 22634 transitions. [2020-12-22 13:02:13,479 INFO L78 Accepts]: Start accepts. Automaton has 15724 states and 22634 transitions. Word has length 135 [2020-12-22 13:02:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:13,485 INFO L481 AbstractCegarLoop]: Abstraction has 15724 states and 22634 transitions. [2020-12-22 13:02:13,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 15724 states and 22634 transitions. [2020-12-22 13:02:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-22 13:02:13,487 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:13,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:13,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:02:13,491 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:13,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:13,492 INFO L82 PathProgramCache]: Analyzing trace with hash 423059804, now seen corresponding path program 1 times [2020-12-22 13:02:13,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:13,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139636137] [2020-12-22 13:02:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:13,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139636137] [2020-12-22 13:02:13,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:13,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:13,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854262534] [2020-12-22 13:02:13,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:13,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:13,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:13,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:13,812 INFO L87 Difference]: Start difference. First operand 15724 states and 22634 transitions. Second operand 4 states. [2020-12-22 13:02:16,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:16,591 INFO L93 Difference]: Finished difference Result 77742 states and 112132 transitions. [2020-12-22 13:02:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:02:16,594 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-12-22 13:02:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:16,684 INFO L225 Difference]: With dead ends: 77742 [2020-12-22 13:02:16,685 INFO L226 Difference]: Without dead ends: 62021 [2020-12-22 13:02:16,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62021 states. [2020-12-22 13:02:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62021 to 15728. [2020-12-22 13:02:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15728 states. [2020-12-22 13:02:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15728 states to 15728 states and 22638 transitions. [2020-12-22 13:02:17,696 INFO L78 Accepts]: Start accepts. Automaton has 15728 states and 22638 transitions. Word has length 137 [2020-12-22 13:02:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:17,696 INFO L481 AbstractCegarLoop]: Abstraction has 15728 states and 22638 transitions. [2020-12-22 13:02:17,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15728 states and 22638 transitions. [2020-12-22 13:02:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-22 13:02:17,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:17,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:17,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:02:17,699 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:17,700 INFO L82 PathProgramCache]: Analyzing trace with hash -397844976, now seen corresponding path program 1 times [2020-12-22 13:02:17,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:17,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437529605] [2020-12-22 13:02:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:17,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437529605] [2020-12-22 13:02:17,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:17,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:17,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554586640] [2020-12-22 13:02:17,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:17,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:17,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:17,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:17,978 INFO L87 Difference]: Start difference. First operand 15728 states and 22638 transitions. Second operand 4 states. [2020-12-22 13:02:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:20,801 INFO L93 Difference]: Finished difference Result 77655 states and 112026 transitions. [2020-12-22 13:02:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:02:20,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2020-12-22 13:02:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:20,875 INFO L225 Difference]: With dead ends: 77655 [2020-12-22 13:02:20,876 INFO L226 Difference]: Without dead ends: 61930 [2020-12-22 13:02:20,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61930 states. [2020-12-22 13:02:21,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61930 to 15732. [2020-12-22 13:02:21,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15732 states. [2020-12-22 13:02:21,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15732 states to 15732 states and 22642 transitions. [2020-12-22 13:02:21,966 INFO L78 Accepts]: Start accepts. Automaton has 15732 states and 22642 transitions. Word has length 140 [2020-12-22 13:02:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:21,966 INFO L481 AbstractCegarLoop]: Abstraction has 15732 states and 22642 transitions. [2020-12-22 13:02:21,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 15732 states and 22642 transitions. [2020-12-22 13:02:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-22 13:02:21,968 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:21,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:21,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:02:21,969 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:21,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:21,969 INFO L82 PathProgramCache]: Analyzing trace with hash -286403660, now seen corresponding path program 1 times [2020-12-22 13:02:21,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:21,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833529757] [2020-12-22 13:02:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:22,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833529757] [2020-12-22 13:02:22,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:22,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:02:22,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571628729] [2020-12-22 13:02:22,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:02:22,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:22,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:02:22,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:22,261 INFO L87 Difference]: Start difference. First operand 15732 states and 22642 transitions. Second operand 5 states. [2020-12-22 13:02:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:25,754 INFO L93 Difference]: Finished difference Result 77054 states and 111372 transitions. [2020-12-22 13:02:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:02:25,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-12-22 13:02:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:25,824 INFO L225 Difference]: With dead ends: 77054 [2020-12-22 13:02:25,824 INFO L226 Difference]: Without dead ends: 61325 [2020-12-22 13:02:25,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:02:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61325 states. [2020-12-22 13:02:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61325 to 15738. [2020-12-22 13:02:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15738 states. [2020-12-22 13:02:26,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15738 states to 15738 states and 22648 transitions. [2020-12-22 13:02:26,846 INFO L78 Accepts]: Start accepts. Automaton has 15738 states and 22648 transitions. Word has length 142 [2020-12-22 13:02:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:26,847 INFO L481 AbstractCegarLoop]: Abstraction has 15738 states and 22648 transitions. [2020-12-22 13:02:26,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:02:26,847 INFO L276 IsEmpty]: Start isEmpty. Operand 15738 states and 22648 transitions. [2020-12-22 13:02:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 13:02:26,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:26,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:26,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 13:02:26,849 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:26,850 INFO L82 PathProgramCache]: Analyzing trace with hash 999922544, now seen corresponding path program 1 times [2020-12-22 13:02:26,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:26,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770496378] [2020-12-22 13:02:26,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:27,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770496378] [2020-12-22 13:02:27,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:27,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:27,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149436202] [2020-12-22 13:02:27,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:27,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:27,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:27,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:27,130 INFO L87 Difference]: Start difference. First operand 15738 states and 22648 transitions. Second operand 4 states. [2020-12-22 13:02:30,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:30,434 INFO L93 Difference]: Finished difference Result 62377 states and 89933 transitions. [2020-12-22 13:02:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:02:30,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2020-12-22 13:02:30,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:30,496 INFO L225 Difference]: With dead ends: 62377 [2020-12-22 13:02:30,496 INFO L226 Difference]: Without dead ends: 46642 [2020-12-22 13:02:30,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46642 states. [2020-12-22 13:02:31,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46642 to 15742. [2020-12-22 13:02:31,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15742 states. [2020-12-22 13:02:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15742 states to 15742 states and 22652 transitions. [2020-12-22 13:02:31,697 INFO L78 Accepts]: Start accepts. Automaton has 15742 states and 22652 transitions. Word has length 147 [2020-12-22 13:02:31,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:31,699 INFO L481 AbstractCegarLoop]: Abstraction has 15742 states and 22652 transitions. [2020-12-22 13:02:31,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:31,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15742 states and 22652 transitions. [2020-12-22 13:02:31,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 13:02:31,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:31,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:31,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 13:02:31,702 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:31,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:31,702 INFO L82 PathProgramCache]: Analyzing trace with hash 606895534, now seen corresponding path program 1 times [2020-12-22 13:02:31,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:31,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365371719] [2020-12-22 13:02:31,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:31,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:31,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365371719] [2020-12-22 13:02:31,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:31,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:02:31,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249445497] [2020-12-22 13:02:31,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:02:31,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:31,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:02:31,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:02:31,976 INFO L87 Difference]: Start difference. First operand 15742 states and 22652 transitions. Second operand 4 states. [2020-12-22 13:02:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:33,659 INFO L93 Difference]: Finished difference Result 39100 states and 56335 transitions. [2020-12-22 13:02:33,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:02:33,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2020-12-22 13:02:33,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:33,685 INFO L225 Difference]: With dead ends: 39100 [2020-12-22 13:02:33,686 INFO L226 Difference]: Without dead ends: 23361 [2020-12-22 13:02:33,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:02:33,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23361 states. [2020-12-22 13:02:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23361 to 15744. [2020-12-22 13:02:34,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15744 states. [2020-12-22 13:02:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15744 states to 15744 states and 22653 transitions. [2020-12-22 13:02:34,838 INFO L78 Accepts]: Start accepts. Automaton has 15744 states and 22653 transitions. Word has length 147 [2020-12-22 13:02:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:34,839 INFO L481 AbstractCegarLoop]: Abstraction has 15744 states and 22653 transitions. [2020-12-22 13:02:34,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:02:34,839 INFO L276 IsEmpty]: Start isEmpty. Operand 15744 states and 22653 transitions. [2020-12-22 13:02:34,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-22 13:02:34,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:34,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:34,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 13:02:34,842 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:34,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1845738842, now seen corresponding path program 1 times [2020-12-22 13:02:34,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:34,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071415593] [2020-12-22 13:02:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:35,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071415593] [2020-12-22 13:02:35,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:35,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:02:35,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315586568] [2020-12-22 13:02:35,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:02:35,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:35,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:02:35,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:35,217 INFO L87 Difference]: Start difference. First operand 15744 states and 22653 transitions. Second operand 3 states. [2020-12-22 13:02:37,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:37,066 INFO L93 Difference]: Finished difference Result 15744 states and 22653 transitions. [2020-12-22 13:02:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:02:37,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-12-22 13:02:37,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:37,084 INFO L225 Difference]: With dead ends: 15744 [2020-12-22 13:02:37,084 INFO L226 Difference]: Without dead ends: 15738 [2020-12-22 13:02:37,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15738 states. [2020-12-22 13:02:38,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15738 to 15738. [2020-12-22 13:02:38,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15738 states. [2020-12-22 13:02:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15738 states to 15738 states and 22645 transitions. [2020-12-22 13:02:38,330 INFO L78 Accepts]: Start accepts. Automaton has 15738 states and 22645 transitions. Word has length 162 [2020-12-22 13:02:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:38,331 INFO L481 AbstractCegarLoop]: Abstraction has 15738 states and 22645 transitions. [2020-12-22 13:02:38,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:02:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand 15738 states and 22645 transitions. [2020-12-22 13:02:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-12-22 13:02:38,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:38,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:38,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 13:02:38,334 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1383355008, now seen corresponding path program 1 times [2020-12-22 13:02:38,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:38,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292600248] [2020-12-22 13:02:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:38,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292600248] [2020-12-22 13:02:38,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:38,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:02:38,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438770282] [2020-12-22 13:02:38,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:02:38,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:38,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:02:38,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:38,734 INFO L87 Difference]: Start difference. First operand 15738 states and 22645 transitions. Second operand 3 states. [2020-12-22 13:02:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:40,019 INFO L93 Difference]: Finished difference Result 15738 states and 22645 transitions. [2020-12-22 13:02:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:02:40,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-12-22 13:02:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:40,046 INFO L225 Difference]: With dead ends: 15738 [2020-12-22 13:02:40,046 INFO L226 Difference]: Without dead ends: 15736 [2020-12-22 13:02:40,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15736 states. [2020-12-22 13:02:41,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15736 to 15736. [2020-12-22 13:02:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15736 states. [2020-12-22 13:02:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15736 states to 15736 states and 22643 transitions. [2020-12-22 13:02:41,120 INFO L78 Accepts]: Start accepts. Automaton has 15736 states and 22643 transitions. Word has length 163 [2020-12-22 13:02:41,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:41,120 INFO L481 AbstractCegarLoop]: Abstraction has 15736 states and 22643 transitions. [2020-12-22 13:02:41,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:02:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 15736 states and 22643 transitions. [2020-12-22 13:02:41,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-22 13:02:41,122 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:41,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:41,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 13:02:41,123 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:41,123 INFO L82 PathProgramCache]: Analyzing trace with hash -65641948, now seen corresponding path program 1 times [2020-12-22 13:02:41,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:41,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073219113] [2020-12-22 13:02:41,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:02:41,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073219113] [2020-12-22 13:02:41,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:41,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:02:41,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915843646] [2020-12-22 13:02:41,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:02:41,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:41,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:02:41,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:41,458 INFO L87 Difference]: Start difference. First operand 15736 states and 22643 transitions. Second operand 3 states. [2020-12-22 13:02:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:43,271 INFO L93 Difference]: Finished difference Result 15736 states and 22643 transitions. [2020-12-22 13:02:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:02:43,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-12-22 13:02:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:43,315 INFO L225 Difference]: With dead ends: 15736 [2020-12-22 13:02:43,315 INFO L226 Difference]: Without dead ends: 15708 [2020-12-22 13:02:43,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15708 states. [2020-12-22 13:02:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15708 to 15708. [2020-12-22 13:02:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15708 states. [2020-12-22 13:02:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15708 states to 15708 states and 22612 transitions. [2020-12-22 13:02:44,399 INFO L78 Accepts]: Start accepts. Automaton has 15708 states and 22612 transitions. Word has length 164 [2020-12-22 13:02:44,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:44,399 INFO L481 AbstractCegarLoop]: Abstraction has 15708 states and 22612 transitions. [2020-12-22 13:02:44,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:02:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 15708 states and 22612 transitions. [2020-12-22 13:02:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-22 13:02:44,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:44,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:44,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 13:02:44,407 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:44,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1421909760, now seen corresponding path program 1 times [2020-12-22 13:02:44,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:44,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226049115] [2020-12-22 13:02:44,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:02:44,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226049115] [2020-12-22 13:02:44,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:44,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:02:44,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815297899] [2020-12-22 13:02:44,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:02:44,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:44,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:02:44,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:44,835 INFO L87 Difference]: Start difference. First operand 15708 states and 22612 transitions. Second operand 3 states. [2020-12-22 13:02:46,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:46,028 INFO L93 Difference]: Finished difference Result 31417 states and 45229 transitions. [2020-12-22 13:02:46,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:02:46,029 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-12-22 13:02:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:46,050 INFO L225 Difference]: With dead ends: 31417 [2020-12-22 13:02:46,051 INFO L226 Difference]: Without dead ends: 15712 [2020-12-22 13:02:46,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:46,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15712 states. [2020-12-22 13:02:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15712 to 15712. [2020-12-22 13:02:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15712 states. [2020-12-22 13:02:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15712 states to 15712 states and 22616 transitions. [2020-12-22 13:02:47,331 INFO L78 Accepts]: Start accepts. Automaton has 15712 states and 22616 transitions. Word has length 182 [2020-12-22 13:02:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:47,332 INFO L481 AbstractCegarLoop]: Abstraction has 15712 states and 22616 transitions. [2020-12-22 13:02:47,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:02:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 15712 states and 22616 transitions. [2020-12-22 13:02:47,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-22 13:02:47,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:02:47,338 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:02:47,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 13:02:47,339 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:02:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:02:47,339 INFO L82 PathProgramCache]: Analyzing trace with hash 410792510, now seen corresponding path program 1 times [2020-12-22 13:02:47,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:02:47,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988041872] [2020-12-22 13:02:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:02:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:02:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:02:47,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988041872] [2020-12-22 13:02:47,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:02:47,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:02:47,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453898387] [2020-12-22 13:02:47,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:02:47,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:02:47,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:02:47,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:47,625 INFO L87 Difference]: Start difference. First operand 15712 states and 22616 transitions. Second operand 3 states. [2020-12-22 13:02:49,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:02:49,951 INFO L93 Difference]: Finished difference Result 15712 states and 22616 transitions. [2020-12-22 13:02:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:02:49,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-12-22 13:02:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:02:49,952 INFO L225 Difference]: With dead ends: 15712 [2020-12-22 13:02:49,952 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 13:02:49,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:02:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 13:02:49,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 13:02:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 13:02:49,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 13:02:49,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 182 [2020-12-22 13:02:49,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:02:49,972 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 13:02:49,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:02:49,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 13:02:49,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 13:02:49,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 13:02:49,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 13:02:50,155 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 12 [2020-12-22 13:02:51,850 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 11 [2020-12-22 13:02:54,659 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:02:56,338 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:02:59,370 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:02:59,758 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:00,011 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:02,747 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:04,711 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 12 [2020-12-22 13:03:05,651 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:08,532 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 13 [2020-12-22 13:03:12,052 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:21,764 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:26,434 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 11 [2020-12-22 13:03:32,073 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:32,235 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:32,369 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:40,526 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 11 [2020-12-22 13:03:50,709 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:50,850 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:03:50,984 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:04:06,150 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:04:09,320 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:09,533 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:09,634 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:09,736 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:12,678 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:19,844 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:19,947 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:20,316 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:20,418 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:20,641 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:20,743 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:20,845 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:24,699 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 13 [2020-12-22 13:04:24,951 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:04:30,731 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:30,833 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:30,937 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:31,155 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-12-22 13:04:32,519 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11 [2020-12-22 13:04:38,684 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 11