/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/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:56:58,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:56:58,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:56:58,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:56:58,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:56:58,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:56:58,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:56:58,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:56:58,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:56:58,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:56:58,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:56:58,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:56:58,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:56:58,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:56:58,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:56:58,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:56:58,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:56:58,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:56:58,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:56:58,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:56:58,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:56:58,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:56:58,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:56:58,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:56:58,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:56:58,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:56:58,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:56:58,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:56:58,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:56:58,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:56:58,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:56:58,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:56:58,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:56:58,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:56:58,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:56:58,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:56:58,823 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 [2020-12-17 23:56:58,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:56:58,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:56:58,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:56:58,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:56:58,878 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:56:58,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:56:58,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:56:58,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:56:58,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:56:58,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:56:58,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:56:58,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:56:58,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:56:58,881 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:56:58,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:56:58,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:56:58,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:56:58,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:56:58,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:56:58,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:56:58,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:56:58,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:56:58,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:56:58,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:56:58,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:56:58,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:56:58,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:56:58,885 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:56:58,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:56:58,885 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:56:58,885 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:56:58,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:56:59,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:56:59,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:56:59,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:56:59,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:56:59,360 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:56:59,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-12-17 23:56:59,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc598afd8/85fc19b5d61140749f440fd53271e838/FLAG8acd14ae3 [2020-12-17 23:57:00,155 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:57:00,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2020-12-17 23:57:00,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc598afd8/85fc19b5d61140749f440fd53271e838/FLAG8acd14ae3 [2020-12-17 23:57:00,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc598afd8/85fc19b5d61140749f440fd53271e838 [2020-12-17 23:57:00,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:57:00,453 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:57:00,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:57:00,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:57:00,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:57:00,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:57:00" (1/1) ... [2020-12-17 23:57:00,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121263ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:00, skipping insertion in model container [2020-12-17 23:57:00,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:57:00" (1/1) ... [2020-12-17 23:57:00,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:57:00,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:57:01,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:57:01,113 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:57:01,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:57:01,347 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:57:01,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01 WrapperNode [2020-12-17 23:57:01,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:57:01,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:57:01,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:57:01,351 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:57:01,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:57:01,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:57:01,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:57:01,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:57:01,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (1/1) ... [2020-12-17 23:57:01,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:57:01,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:57:01,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:57:01,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:57:01,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (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 [2020-12-17 23:57:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:57:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:57:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:57:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:57:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:57:01,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:57:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:57:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:57:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-17 23:57:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-17 23:57:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:57:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:57:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:57:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:57:01,605 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:57:02,035 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:57:02,036 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:57:02,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:57:02 BoogieIcfgContainer [2020-12-17 23:57:02,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:57:02,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:57:02,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:57:02,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:57:02,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:57:00" (1/3) ... [2020-12-17 23:57:02,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6550209b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:57:02, skipping insertion in model container [2020-12-17 23:57:02,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:57:01" (2/3) ... [2020-12-17 23:57:02,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6550209b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:57:02, skipping insertion in model container [2020-12-17 23:57:02,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:57:02" (3/3) ... [2020-12-17 23:57:02,049 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2020-12-17 23:57:02,067 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:57:02,067 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:57:02,071 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:57:02,072 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:57:02,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,106 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,107 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,107 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,107 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,111 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,115 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,115 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,116 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,116 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,116 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,117 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,128 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,129 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,132 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:57:02,140 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:57:02,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-17 23:57:02,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:57:02,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:57:02,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:57:02,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:57:02,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:57:02,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:57:02,182 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:57:02,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:57:02,197 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow [2020-12-17 23:57:03,329 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) [2020-12-17 23:57:03,373 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) [2020-12-17 23:57:03,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-17 23:57:03,421 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:03,422 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] [2020-12-17 23:57:03,423 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 960913987, now seen corresponding path program 1 times [2020-12-17 23:57:03,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:03,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480072372] [2020-12-17 23:57:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:03,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:03,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480072372] [2020-12-17 23:57:03,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:03,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:03,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772451096] [2020-12-17 23:57:03,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:03,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:03,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:03,998 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) [2020-12-17 23:57:04,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:04,435 INFO L93 Difference]: Finished difference Result 12201 states and 42465 transitions. [2020-12-17 23:57:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:57:04,437 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 [2020-12-17 23:57:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:04,440 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 [2020-12-17 23:57:04,440 INFO L78 Accepts]: Start accepts. Automaton has 12201 states and 42465 transitions. Word has length 43 [2020-12-17 23:57:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:04,443 INFO L481 AbstractCegarLoop]: Abstraction has 12201 states and 42465 transitions. [2020-12-17 23:57:04,443 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) [2020-12-17 23:57:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12201 states and 42465 transitions. [2020-12-17 23:57:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-17 23:57:04,465 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:04,465 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] [2020-12-17 23:57:04,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:57:04,466 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:04,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1551930462, now seen corresponding path program 1 times [2020-12-17 23:57:04,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:04,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353065847] [2020-12-17 23:57:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:04,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353065847] [2020-12-17 23:57:04,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:04,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:04,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436735528] [2020-12-17 23:57:04,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:04,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:04,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:04,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:04,654 INFO L87 Difference]: Start difference. First operand 12201 states and 42465 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2020-12-17 23:57:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:05,338 INFO L93 Difference]: Finished difference Result 16821 states and 57821 transitions. [2020-12-17 23:57:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:57:05,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45 [2020-12-17 23:57:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:05,350 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:57:05,350 INFO L78 Accepts]: Start accepts. Automaton has 16821 states and 57821 transitions. Word has length 45 [2020-12-17 23:57:05,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:05,351 INFO L481 AbstractCegarLoop]: Abstraction has 16821 states and 57821 transitions. [2020-12-17 23:57:05,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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) [2020-12-17 23:57:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 16821 states and 57821 transitions. [2020-12-17 23:57:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-17 23:57:05,405 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:05,405 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] [2020-12-17 23:57:05,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:57:05,406 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:05,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash 2078104249, now seen corresponding path program 1 times [2020-12-17 23:57:05,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:05,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850446937] [2020-12-17 23:57:05,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:05,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850446937] [2020-12-17 23:57:05,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:05,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:57:05,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165927017] [2020-12-17 23:57:05,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:57:05,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:05,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:57:05,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:57:05,566 INFO L87 Difference]: Start difference. First operand 16821 states and 57821 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2020-12-17 23:57:05,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:05,884 INFO L93 Difference]: Finished difference Result 15524 states and 51960 transitions. [2020-12-17 23:57:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:57:05,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2020-12-17 23:57:05,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:05,886 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 [2020-12-17 23:57:05,886 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 51960 transitions. Word has length 48 [2020-12-17 23:57:05,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:05,887 INFO L481 AbstractCegarLoop]: Abstraction has 15524 states and 51960 transitions. [2020-12-17 23:57:05,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2020-12-17 23:57:05,887 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 51960 transitions. [2020-12-17 23:57:05,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-17 23:57:05,914 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:05,914 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] [2020-12-17 23:57:05,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:57:05,914 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:05,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:05,915 INFO L82 PathProgramCache]: Analyzing trace with hash 234797092, now seen corresponding path program 1 times [2020-12-17 23:57:05,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:05,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271587244] [2020-12-17 23:57:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:05,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:06,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271587244] [2020-12-17 23:57:06,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:06,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:06,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336165105] [2020-12-17 23:57:06,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:06,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:06,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:06,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:06,233 INFO L87 Difference]: Start difference. First operand 15524 states and 51960 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-12-17 23:57:06,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:06,649 INFO L93 Difference]: Finished difference Result 11171 states and 36203 transitions. [2020-12-17 23:57:06,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:57:06,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49 [2020-12-17 23:57:06,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:06,651 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:57:06,652 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 36203 transitions. Word has length 49 [2020-12-17 23:57:06,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:06,652 INFO L481 AbstractCegarLoop]: Abstraction has 11171 states and 36203 transitions. [2020-12-17 23:57:06,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2020-12-17 23:57:06,653 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 36203 transitions. [2020-12-17 23:57:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-17 23:57:06,677 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:06,677 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] [2020-12-17 23:57:06,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:57:06,678 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:06,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:06,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1561578237, now seen corresponding path program 1 times [2020-12-17 23:57:06,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:06,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836341510] [2020-12-17 23:57:06,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:06,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836341510] [2020-12-17 23:57:06,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:06,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-17 23:57:06,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46543499] [2020-12-17 23:57:06,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-17 23:57:06,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:06,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-17 23:57:06,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-17 23:57:06,872 INFO L87 Difference]: Start difference. First operand 11171 states and 36203 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) [2020-12-17 23:57:07,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:07,305 INFO L93 Difference]: Finished difference Result 7994 states and 25640 transitions. [2020-12-17 23:57:07,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-17 23:57:07,306 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 [2020-12-17 23:57:07,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:07,307 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2020-12-17 23:57:07,307 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 25640 transitions. Word has length 51 [2020-12-17 23:57:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:07,307 INFO L481 AbstractCegarLoop]: Abstraction has 7994 states and 25640 transitions. [2020-12-17 23:57:07,308 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) [2020-12-17 23:57:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 25640 transitions. [2020-12-17 23:57:07,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 23:57:07,327 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:07,327 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] [2020-12-17 23:57:07,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:57:07,327 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:07,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:07,328 INFO L82 PathProgramCache]: Analyzing trace with hash -936602175, now seen corresponding path program 1 times [2020-12-17 23:57:07,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:07,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966675472] [2020-12-17 23:57:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:07,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966675472] [2020-12-17 23:57:07,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:07,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:07,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513385433] [2020-12-17 23:57:07,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:07,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:07,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:07,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:07,496 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) [2020-12-17 23:57:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:07,736 INFO L93 Difference]: Finished difference Result 12429 states and 39395 transitions. [2020-12-17 23:57:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:57:07,736 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 [2020-12-17 23:57:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:07,737 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 [2020-12-17 23:57:07,737 INFO L78 Accepts]: Start accepts. Automaton has 12429 states and 39395 transitions. Word has length 55 [2020-12-17 23:57:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:07,738 INFO L481 AbstractCegarLoop]: Abstraction has 12429 states and 39395 transitions. [2020-12-17 23:57:07,738 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) [2020-12-17 23:57:07,738 INFO L276 IsEmpty]: Start isEmpty. Operand 12429 states and 39395 transitions. [2020-12-17 23:57:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-17 23:57:07,764 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:57:07,764 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] [2020-12-17 23:57:07,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 23:57:07,764 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:57:07,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:57:07,765 INFO L82 PathProgramCache]: Analyzing trace with hash -331013291, now seen corresponding path program 2 times [2020-12-17 23:57:07,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:57:07,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080384152] [2020-12-17 23:57:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:57:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:57:07,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:57:07,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080384152] [2020-12-17 23:57:07,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:57:07,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:57:07,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360925787] [2020-12-17 23:57:07,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:57:07,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:57:07,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:57:07,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:57:07,896 INFO L87 Difference]: Start difference. First operand 12429 states and 39395 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) [2020-12-17 23:57:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:57:08,118 INFO L93 Difference]: Finished difference Result 18641 states and 58535 transitions. [2020-12-17 23:57:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-17 23:57:08,119 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 [2020-12-17 23:57:08,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:57:08,119 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 [2020-12-17 23:57:08,120 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 58535 transitions. Word has length 55 [2020-12-17 23:57:08,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:57:08,120 INFO L481 AbstractCegarLoop]: Abstraction has 18641 states and 58535 transitions. [2020-12-17 23:57:08,120 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) [2020-12-17 23:57:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 58535 transitions. [2020-12-17 23:57:08,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:57:08,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 23:57:08,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:57:08 BasicIcfg [2020-12-17 23:57:08,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:57:08,252 INFO L168 Benchmark]: Toolchain (without parser) took 7798.12 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 276.0 MB in the beginning and 1.1 GB in the end (delta: -832.3 MB). Peak memory consumption was 277.7 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:08,253 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:57:08,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 893.32 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 276.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:08,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.26 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:57:08,255 INFO L168 Benchmark]: Boogie Preprocessor took 60.71 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:57:08,256 INFO L168 Benchmark]: RCFGBuilder took 529.67 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 249.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:08,257 INFO L168 Benchmark]: TraceAbstraction took 6208.34 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 249.5 MB in the beginning and 1.1 GB in the end (delta: -858.9 MB). Peak memory consumption was 251.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:57:08,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 893.32 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 276.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 95.26 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 60.71 ms. Allocated memory is still 302.0 MB. Free memory was 274.7 MB in the beginning and 273.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 529.67 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 249.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6208.34 ms. Allocated memory was 302.0 MB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Free memory was 249.5 MB in the beginning and 1.1 GB in the end (delta: -858.9 MB). Peak memory consumption was 251.6 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: 6.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 793 SDtfs, 1455 SDslu, 2875 SDs, 0 SdLazy, 294 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18641occurred 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, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 44289 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...