/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/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:03:37,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:03:37,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:03:38,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:03:38,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:03:38,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:03:38,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:03:38,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:03:38,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:03:38,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:03:38,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:03:38,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:03:38,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:03:38,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:03:38,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:03:38,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:03:38,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:03:38,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:03:38,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:03:38,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:03:38,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:03:38,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:03:38,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:03:38,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:03:38,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-18 00:03:38,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 00:03:38,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 00:03:38,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 00:03:38,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 00:03:38,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 00:03:38,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 00:03:38,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 00:03:38,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 00:03:38,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:03:38,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:03:38,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:03:38,147 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 00:03:38,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:03:38,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:03:38,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:03:38,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:03:38,207 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:03:38,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:03:38,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:03:38,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:03:38,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:03:38,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:03:38,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:03:38,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:03:38,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:03:38,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:03:38,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:03:38,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:03:38,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:03:38,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:03:38,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:03:38,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:03:38,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:03:38,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:03:38,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:03:38,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:03:38,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:03:38,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:03:38,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:03:38,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:03:38,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:03:38,214 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:03:38,215 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:03:38,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:03:38,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:03:38,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:03:38,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:03:38,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:03:38,681 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:03:38,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-12-18 00:03:38,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9a8367f/b3d7774b6ac047e281170e2e7344aa4b/FLAGcbd5aba0c [2020-12-18 00:03:39,681 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:03:39,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-12-18 00:03:39,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9a8367f/b3d7774b6ac047e281170e2e7344aa4b/FLAGcbd5aba0c [2020-12-18 00:03:39,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af9a8367f/b3d7774b6ac047e281170e2e7344aa4b [2020-12-18 00:03:39,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:03:39,920 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:03:39,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:03:39,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:03:39,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:03:39,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:03:39" (1/1) ... [2020-12-18 00:03:39,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f35d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:39, skipping insertion in model container [2020-12-18 00:03:39,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:03:39" (1/1) ... [2020-12-18 00:03:39,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:03:40,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:03:40,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:03:40,592 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:03:40,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:03:40,794 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:03:40,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40 WrapperNode [2020-12-18 00:03:40,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:03:40,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:03:40,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:03:40,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:03:40,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:03:40,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:03:40,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:03:40,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:03:40,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (1/1) ... [2020-12-18 00:03:40,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:03:40,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:03:40,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:03:40,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:03:40,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (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 00:03:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:03:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-18 00:03:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:03:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:03:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-18 00:03:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-18 00:03:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-18 00:03:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-18 00:03:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-18 00:03:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-18 00:03:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:03:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-18 00:03:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:03:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:03:41,000 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 00:03:41,472 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:03:41,472 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-18 00:03:41,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:03:41 BoogieIcfgContainer [2020-12-18 00:03:41,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:03:41,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:03:41,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:03:41,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:03:41,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:03:39" (1/3) ... [2020-12-18 00:03:41,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca21988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:03:41, skipping insertion in model container [2020-12-18 00:03:41,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:03:40" (2/3) ... [2020-12-18 00:03:41,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca21988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:03:41, skipping insertion in model container [2020-12-18 00:03:41,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:03:41" (3/3) ... [2020-12-18 00:03:41,485 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-12-18 00:03:41,503 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:03:41,503 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:03:41,506 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-18 00:03:41,507 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:03:41,542 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,543 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,543 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,544 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,544 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,544 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,547 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,547 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,548 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,548 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,548 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,550 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,550 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,551 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,551 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,554 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:03:41,573 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-18 00:03:41,586 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-18 00:03:41,611 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:03:41,611 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:03:41,611 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:03:41,611 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:03:41,611 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:03:41,612 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:03:41,612 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:03:41,612 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:03:41,624 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-12-18 00:03:42,672 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 00:03:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 00:03:42,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-18 00:03:42,776 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:03:42,778 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] [2020-12-18 00:03:42,779 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:03:42,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:03:42,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times [2020-12-18 00:03:42,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:03:42,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418047379] [2020-12-18 00:03:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:03:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:03:43,424 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 00:03:43,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418047379] [2020-12-18 00:03:43,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:03:43,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-18 00:03:43,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312304100] [2020-12-18 00:03:43,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-18 00:03:43,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:03:43,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-18 00:03:43,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-18 00:03:43,474 INFO L87 Difference]: Start difference. First operand has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 00:03:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:03:43,843 INFO L93 Difference]: Finished difference Result 9342 states and 31814 transitions. [2020-12-18 00:03:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-18 00:03:43,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43 [2020-12-18 00:03:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:03:43,848 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-18 00:03:43,848 INFO L78 Accepts]: Start accepts. Automaton has 9342 states and 31814 transitions. Word has length 43 [2020-12-18 00:03:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:03:43,850 INFO L481 AbstractCegarLoop]: Abstraction has 9342 states and 31814 transitions. [2020-12-18 00:03:43,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 00:03:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 9342 states and 31814 transitions. [2020-12-18 00:03:43,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-18 00:03:43,874 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:03:43,874 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] [2020-12-18 00:03:43,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:03:43,875 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:03:43,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:03:43,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times [2020-12-18 00:03:43,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:03:43,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702331525] [2020-12-18 00:03:43,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:03:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:03:44,057 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 00:03:44,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702331525] [2020-12-18 00:03:44,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:03:44,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:03:44,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051910486] [2020-12-18 00:03:44,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:03:44,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:03:44,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:03:44,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:03:44,061 INFO L87 Difference]: Start difference. First operand 9342 states and 31814 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 00:03:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:03:44,491 INFO L93 Difference]: Finished difference Result 7281 states and 23852 transitions. [2020-12-18 00:03:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-18 00:03:44,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2020-12-18 00:03:44,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:03:44,495 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-18 00:03:44,495 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 23852 transitions. Word has length 47 [2020-12-18 00:03:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:03:44,496 INFO L481 AbstractCegarLoop]: Abstraction has 7281 states and 23852 transitions. [2020-12-18 00:03:44,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 00:03:44,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 23852 transitions. [2020-12-18 00:03:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-18 00:03:44,519 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:03:44,519 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] [2020-12-18 00:03:44,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:03:44,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:03:44,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:03:44,521 INFO L82 PathProgramCache]: Analyzing trace with hash 708225082, now seen corresponding path program 1 times [2020-12-18 00:03:44,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:03:44,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430504627] [2020-12-18 00:03:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:03:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:03:44,833 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 00:03:44,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430504627] [2020-12-18 00:03:44,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:03:44,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-18 00:03:44,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494951017] [2020-12-18 00:03:44,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-18 00:03:44,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:03:44,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-18 00:03:44,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-18 00:03:44,840 INFO L87 Difference]: Start difference. First operand 7281 states and 23852 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 00:03:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:03:45,211 INFO L93 Difference]: Finished difference Result 5364 states and 17390 transitions. [2020-12-18 00:03:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-18 00:03:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 51 [2020-12-18 00:03:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:03:45,212 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 00:03:45,212 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 17390 transitions. Word has length 51 [2020-12-18 00:03:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:03:45,213 INFO L481 AbstractCegarLoop]: Abstraction has 5364 states and 17390 transitions. [2020-12-18 00:03:45,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 00:03:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 17390 transitions. [2020-12-18 00:03:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-18 00:03:45,230 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:03:45,231 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, 1] [2020-12-18 00:03:45,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:03:45,231 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:03:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:03:45,232 INFO L82 PathProgramCache]: Analyzing trace with hash 139688856, now seen corresponding path program 1 times [2020-12-18 00:03:45,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:03:45,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333668114] [2020-12-18 00:03:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:03:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:03:45,348 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 00:03:45,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333668114] [2020-12-18 00:03:45,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:03:45,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:03:45,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201159396] [2020-12-18 00:03:45,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:03:45,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:03:45,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:03:45,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:03:45,351 INFO L87 Difference]: Start difference. First operand 5364 states and 17390 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:03:45,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:03:45,547 INFO L93 Difference]: Finished difference Result 7994 states and 25640 transitions. [2020-12-18 00:03:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-18 00:03:45,548 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2020-12-18 00:03:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:03:45,549 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 00:03:45,550 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 25640 transitions. Word has length 55 [2020-12-18 00:03:45,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:03:45,550 INFO L481 AbstractCegarLoop]: Abstraction has 7994 states and 25640 transitions. [2020-12-18 00:03:45,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:03:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 25640 transitions. [2020-12-18 00:03:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-18 00:03:45,576 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:03:45,576 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, 1] [2020-12-18 00:03:45,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:03:45,577 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:03:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:03:45,578 INFO L82 PathProgramCache]: Analyzing trace with hash -621080086, now seen corresponding path program 2 times [2020-12-18 00:03:45,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:03:45,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892272862] [2020-12-18 00:03:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:03:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:03:45,771 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 00:03:45,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892272862] [2020-12-18 00:03:45,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:03:45,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:03:45,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13489513] [2020-12-18 00:03:45,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:03:45,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:03:45,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:03:45,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:03:45,774 INFO L87 Difference]: Start difference. First operand 7994 states and 25640 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:03:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:03:45,954 INFO L93 Difference]: Finished difference Result 12509 states and 39599 transitions. [2020-12-18 00:03:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-18 00:03:45,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2020-12-18 00:03:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:03:45,958 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 00:03:45,958 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 39599 transitions. Word has length 55 [2020-12-18 00:03:45,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:03:45,959 INFO L481 AbstractCegarLoop]: Abstraction has 12509 states and 39599 transitions. [2020-12-18 00:03:45,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:03:45,959 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 39599 transitions. [2020-12-18 00:03:46,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-18 00:03:46,014 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:03:46,015 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, 1] [2020-12-18 00:03:46,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-18 00:03:46,015 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:03:46,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:03:46,016 INFO L82 PathProgramCache]: Analyzing trace with hash 952401922, now seen corresponding path program 3 times [2020-12-18 00:03:46,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:03:46,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155406284] [2020-12-18 00:03:46,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:03:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:03:46,177 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 00:03:46,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155406284] [2020-12-18 00:03:46,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:03:46,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-18 00:03:46,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319403985] [2020-12-18 00:03:46,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-18 00:03:46,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:03:46,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-18 00:03:46,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-18 00:03:46,180 INFO L87 Difference]: Start difference. First operand 12509 states and 39599 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:03:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:03:46,480 INFO L93 Difference]: Finished difference Result 18641 states and 58535 transitions. [2020-12-18 00:03:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-18 00:03:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2020-12-18 00:03:46,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:03:46,482 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 00:03:46,483 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 58535 transitions. Word has length 55 [2020-12-18 00:03:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:03:46,483 INFO L481 AbstractCegarLoop]: Abstraction has 18641 states and 58535 transitions. [2020-12-18 00:03:46,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 00:03:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 58535 transitions. [2020-12-18 00:03:46,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:03:46,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-18 00:03:46,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:03:46 BasicIcfg [2020-12-18 00:03:46,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:03:46,555 INFO L168 Benchmark]: Toolchain (without parser) took 6634.81 ms. Allocated memory was 302.0 MB in the beginning and 629.1 MB in the end (delta: 327.2 MB). Free memory was 277.6 MB in the beginning and 460.3 MB in the end (delta: -182.7 MB). Peak memory consumption was 146.4 MB. Max. memory is 16.0 GB. [2020-12-18 00:03:46,556 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:03:46,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.27 ms. Allocated memory is still 302.0 MB. Free memory was 277.4 MB in the beginning and 246.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2020-12-18 00:03:46,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.27 ms. Allocated memory is still 302.0 MB. Free memory was 246.6 MB in the beginning and 244.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:03:46,560 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 243.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:03:46,562 INFO L168 Benchmark]: RCFGBuilder took 590.43 ms. Allocated memory is still 302.0 MB. Free memory was 243.1 MB in the beginning and 262.4 MB in the end (delta: -19.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. [2020-12-18 00:03:46,565 INFO L168 Benchmark]: TraceAbstraction took 5075.73 ms. Allocated memory was 302.0 MB in the beginning and 629.1 MB in the end (delta: 327.2 MB). Free memory was 261.3 MB in the beginning and 460.3 MB in the end (delta: -199.0 MB). Peak memory consumption was 131.3 MB. Max. memory is 16.0 GB. [2020-12-18 00:03:46,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 871.27 ms. Allocated memory is still 302.0 MB. Free memory was 277.4 MB in the beginning and 246.6 MB in the end (delta: 30.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.27 ms. Allocated memory is still 302.0 MB. Free memory was 246.6 MB in the beginning and 244.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 243.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 590.43 ms. Allocated memory is still 302.0 MB. Free memory was 243.1 MB in the beginning and 262.4 MB in the end (delta: -19.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5075.73 ms. Allocated memory was 302.0 MB in the beginning and 629.1 MB in the end (delta: 327.2 MB). Free memory was 261.3 MB in the beginning and 460.3 MB in the end (delta: -199.0 MB). Peak memory consumption was 131.3 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 690 SDtfs, 1044 SDslu, 2542 SDs, 0 SdLazy, 250 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18641occurred in iteration=6, 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, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 38064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...