/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:02:41,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:02:41,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:02:41,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:02:41,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:02:41,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:02:41,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:02:41,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:02:41,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:02:41,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:02:41,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:02:41,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:02:41,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:02:41,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:02:41,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:02:41,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:02:41,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:02:41,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:02:41,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:02:41,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:02:41,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:02:41,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:02:41,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:02:41,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:02:41,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-18 00:02:41,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-18 00:02:41,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-18 00:02:41,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-18 00:02:41,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-18 00:02:41,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-18 00:02:41,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 00:02:41,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 00:02:41,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 00:02:41,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 00:02:41,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 00:02:41,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 00:02:41,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 00:02:41,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 00:02:41,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:02:41,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:02:41,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:02:41,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2020-12-18 00:02:42,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:02:42,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:02:42,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:02:42,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:02:42,013 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:02:42,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:02:42,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:02:42,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:02:42,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:02:42,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:02:42,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:02:42,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:02:42,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:02:42,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:02:42,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:02:42,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:02:42,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:02:42,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:02:42,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:02:42,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:02:42,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:02:42,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:02:42,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:02:42,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:02:42,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:02:42,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:02:42,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:02:42,020 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:02:42,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:02:42,020 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:02:42,020 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:02:42,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:02:42,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:02:42,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:02:42,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:02:42,498 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:02:42,499 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:02:42,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-12-18 00:02:42,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c149863/918ed2ecf90d4e55b8d8713104184ce7/FLAGd69f78a1a [2020-12-18 00:02:43,184 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:02:43,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-12-18 00:02:43,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c149863/918ed2ecf90d4e55b8d8713104184ce7/FLAGd69f78a1a [2020-12-18 00:02:43,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c149863/918ed2ecf90d4e55b8d8713104184ce7 [2020-12-18 00:02:43,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:02:43,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:02:43,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:02:43,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:02:43,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:02:43,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:02:43" (1/1) ... [2020-12-18 00:02:43,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40acae4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:43, skipping insertion in model container [2020-12-18 00:02:43,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:02:43" (1/1) ... [2020-12-18 00:02:43,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:02:43,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:02:43,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:02:43,956 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:02:44,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:02:44,156 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:02:44,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44 WrapperNode [2020-12-18 00:02:44,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:02:44,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:02:44,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:02:44,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:02:44,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:02:44,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:02:44,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:02:44,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:02:44,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (1/1) ... [2020-12-18 00:02:44,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:02:44,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:02:44,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:02:44,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:02:44,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (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 [2020-12-18 00:02:44,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:02:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 00:02:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:02:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:02:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-18 00:02:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-18 00:02:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-18 00:02:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-18 00:02:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-18 00:02:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-18 00:02:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:02:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 00:02:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:02:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:02:44,351 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 00:02:44,768 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:02:44,768 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-18 00:02:44,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:02:44 BoogieIcfgContainer [2020-12-18 00:02:44,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:02:44,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:02:44,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:02:44,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:02:44,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:02:43" (1/3) ... [2020-12-18 00:02:44,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5901262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:02:44, skipping insertion in model container [2020-12-18 00:02:44,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:02:44" (2/3) ... [2020-12-18 00:02:44,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5901262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:02:44, skipping insertion in model container [2020-12-18 00:02:44,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:02:44" (3/3) ... [2020-12-18 00:02:44,782 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2020-12-18 00:02:44,797 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:02:44,797 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:02:44,801 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-18 00:02:44,802 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:02:44,828 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,830 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,835 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,835 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,836 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,836 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,836 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,836 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,837 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,846 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,846 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,846 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,846 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,848 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,849 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,849 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,849 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:02:44,851 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 00:02:44,864 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-18 00:02:44,887 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:02:44,887 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:02:44,887 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:02:44,888 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:02:44,888 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:02:44,888 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:02:44,888 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:02:44,888 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:02:44,900 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-12-18 00:02:45,746 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-18 00:02:45,840 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:45,841 INFO L504 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] [2020-12-18 00:02:45,841 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:45,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1916858186, now seen corresponding path program 1 times [2020-12-18 00:02:45,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:45,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018970491] [2020-12-18 00:02:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:46,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018970491] [2020-12-18 00:02:46,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:46,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:02:46,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289648872] [2020-12-18 00:02:46,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:02:46,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:46,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:02:46,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:02:46,423 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:46,850 INFO L93 Difference]: Finished difference Result 13208 states and 46044 transitions. [2020-12-18 00:02:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-18 00:02:46,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-12-18 00:02:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:46,855 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:02:46,856 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 46044 transitions. Word has length 42 [2020-12-18 00:02:46,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:46,858 INFO L481 AbstractCegarLoop]: Abstraction has 13208 states and 46044 transitions. [2020-12-18 00:02:46,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:46,858 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 46044 transitions. [2020-12-18 00:02:46,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-18 00:02:46,883 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:46,883 INFO L504 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] [2020-12-18 00:02:46,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:02:46,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1520283371, now seen corresponding path program 1 times [2020-12-18 00:02:46,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:46,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263198448] [2020-12-18 00:02:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:47,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263198448] [2020-12-18 00:02:47,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:47,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:02:47,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691910936] [2020-12-18 00:02:47,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:02:47,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:02:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:02:47,084 INFO L87 Difference]: Start difference. First operand 13208 states and 46044 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:47,412 INFO L93 Difference]: Finished difference Result 11075 states and 37454 transitions. [2020-12-18 00:02:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-18 00:02:47,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-12-18 00:02:47,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:47,415 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:02:47,415 INFO L78 Accepts]: Start accepts. Automaton has 11075 states and 37454 transitions. Word has length 44 [2020-12-18 00:02:47,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:47,415 INFO L481 AbstractCegarLoop]: Abstraction has 11075 states and 37454 transitions. [2020-12-18 00:02:47,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:47,416 INFO L276 IsEmpty]: Start isEmpty. Operand 11075 states and 37454 transitions. [2020-12-18 00:02:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-18 00:02:47,432 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:47,432 INFO L504 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] [2020-12-18 00:02:47,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:02:47,433 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:47,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:47,434 INFO L82 PathProgramCache]: Analyzing trace with hash 44408180, now seen corresponding path program 1 times [2020-12-18 00:02:47,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:47,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281055040] [2020-12-18 00:02:47,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:47,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281055040] [2020-12-18 00:02:47,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:47,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:02:47,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678355833] [2020-12-18 00:02:47,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:02:47,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:47,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:02:47,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:02:47,709 INFO L87 Difference]: Start difference. First operand 11075 states and 37454 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:48,046 INFO L93 Difference]: Finished difference Result 7280 states and 23851 transitions. [2020-12-18 00:02:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:02:48,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2020-12-18 00:02:48,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:48,048 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-18 00:02:48,048 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 23851 transitions. Word has length 46 [2020-12-18 00:02:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:48,049 INFO L481 AbstractCegarLoop]: Abstraction has 7280 states and 23851 transitions. [2020-12-18 00:02:48,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 23851 transitions. [2020-12-18 00:02:48,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-18 00:02:48,067 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:48,067 INFO L504 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] [2020-12-18 00:02:48,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:02:48,067 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:48,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:48,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1894826698, now seen corresponding path program 1 times [2020-12-18 00:02:48,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:48,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704628418] [2020-12-18 00:02:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:48,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704628418] [2020-12-18 00:02:48,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:48,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-18 00:02:48,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705577268] [2020-12-18 00:02:48,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-18 00:02:48,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:48,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-18 00:02:48,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-18 00:02:48,279 INFO L87 Difference]: Start difference. First operand 7280 states and 23851 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:48,682 INFO L93 Difference]: Finished difference Result 5363 states and 17389 transitions. [2020-12-18 00:02:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-18 00:02:48,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2020-12-18 00:02:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:48,686 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-18 00:02:48,686 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 17389 transitions. Word has length 50 [2020-12-18 00:02:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:48,687 INFO L481 AbstractCegarLoop]: Abstraction has 5363 states and 17389 transitions. [2020-12-18 00:02:48,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 17389 transitions. [2020-12-18 00:02:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-18 00:02:48,705 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:48,705 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:02:48,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:02:48,705 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:48,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:48,707 INFO L82 PathProgramCache]: Analyzing trace with hash -60408392, now seen corresponding path program 1 times [2020-12-18 00:02:48,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:48,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221368399] [2020-12-18 00:02:48,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:48,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221368399] [2020-12-18 00:02:48,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:48,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:02:48,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012166290] [2020-12-18 00:02:48,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:02:48,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:48,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:02:48,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:02:48,875 INFO L87 Difference]: Start difference. First operand 5363 states and 17389 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:49,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:49,048 INFO L93 Difference]: Finished difference Result 7993 states and 25639 transitions. [2020-12-18 00:02:49,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-18 00:02:49,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-12-18 00:02:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:49,049 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-18 00:02:49,049 INFO L78 Accepts]: Start accepts. Automaton has 7993 states and 25639 transitions. Word has length 54 [2020-12-18 00:02:49,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:49,050 INFO L481 AbstractCegarLoop]: Abstraction has 7993 states and 25639 transitions. [2020-12-18 00:02:49,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 7993 states and 25639 transitions. [2020-12-18 00:02:49,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-18 00:02:49,068 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:49,068 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:02:49,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-18 00:02:49,069 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:49,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1912523388, now seen corresponding path program 2 times [2020-12-18 00:02:49,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:49,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556968865] [2020-12-18 00:02:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:49,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556968865] [2020-12-18 00:02:49,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:49,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:02:49,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143508868] [2020-12-18 00:02:49,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:02:49,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:49,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:02:49,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:02:49,196 INFO L87 Difference]: Start difference. First operand 7993 states and 25639 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:49,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:49,360 INFO L93 Difference]: Finished difference Result 12428 states and 39394 transitions. [2020-12-18 00:02:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-18 00:02:49,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-12-18 00:02:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:49,362 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:02:49,362 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 39394 transitions. Word has length 54 [2020-12-18 00:02:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:49,363 INFO L481 AbstractCegarLoop]: Abstraction has 12428 states and 39394 transitions. [2020-12-18 00:02:49,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 39394 transitions. [2020-12-18 00:02:49,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-18 00:02:49,397 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:02:49,397 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:02:49,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-18 00:02:49,398 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:02:49,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:02:49,398 INFO L82 PathProgramCache]: Analyzing trace with hash -2071801964, now seen corresponding path program 3 times [2020-12-18 00:02:49,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:02:49,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637535949] [2020-12-18 00:02:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:02:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:02:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:02:49,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637535949] [2020-12-18 00:02:49,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:02:49,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:02:49,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156863786] [2020-12-18 00:02:49,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:02:49,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:02:49,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:02:49,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:02:49,587 INFO L87 Difference]: Start difference. First operand 12428 states and 39394 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:49,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:02:49,768 INFO L93 Difference]: Finished difference Result 18640 states and 58534 transitions. [2020-12-18 00:02:49,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-18 00:02:49,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-12-18 00:02:49,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:02:49,770 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:02:49,770 INFO L78 Accepts]: Start accepts. Automaton has 18640 states and 58534 transitions. Word has length 54 [2020-12-18 00:02:49,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:02:49,770 INFO L481 AbstractCegarLoop]: Abstraction has 18640 states and 58534 transitions. [2020-12-18 00:02:49,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:02:49,771 INFO L276 IsEmpty]: Start isEmpty. Operand 18640 states and 58534 transitions. [2020-12-18 00:02:49,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:02:49,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-18 00:02:49,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:02:49 BasicIcfg [2020-12-18 00:02:49,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:02:49,822 INFO L168 Benchmark]: Toolchain (without parser) took 6337.77 ms. Allocated memory was 302.0 MB in the beginning and 841.0 MB in the end (delta: 539.0 MB). Free memory was 276.5 MB in the beginning and 617.6 MB in the end (delta: -341.1 MB). Peak memory consumption was 198.9 MB. Max. memory is 16.0 GB. [2020-12-18 00:02:49,823 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:02:49,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.91 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 277.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.0 GB. [2020-12-18 00:02:49,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 302.0 MB. Free memory was 277.3 MB in the beginning and 275.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:02:49,832 INFO L168 Benchmark]: Boogie Preprocessor took 27.84 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 274.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:02:49,832 INFO L168 Benchmark]: RCFGBuilder took 511.60 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 251.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:02:49,833 INFO L168 Benchmark]: TraceAbstraction took 5044.48 ms. Allocated memory was 302.0 MB in the beginning and 841.0 MB in the end (delta: 539.0 MB). Free memory was 250.0 MB in the beginning and 617.6 MB in the end (delta: -367.6 MB). Peak memory consumption was 173.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:02:49,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 273.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 673.91 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 277.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 302.0 MB. Free memory was 277.3 MB in the beginning and 275.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.84 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 274.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 511.60 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 251.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5044.48 ms. Allocated memory was 302.0 MB in the beginning and 841.0 MB in the end (delta: 539.0 MB). Free memory was 250.0 MB in the beginning and 617.6 MB in the end (delta: -367.6 MB). Peak memory consumption was 173.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 764 SDtfs, 1249 SDslu, 2682 SDs, 0 SdLazy, 272 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18640occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 39631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...