/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:28:59,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:28:59,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:28:59,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:28:59,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:28:59,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:28:59,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:28:59,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:28:59,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:28:59,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:28:59,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:28:59,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:28:59,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:28:59,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:28:59,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:28:59,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:28:59,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:28:59,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:28:59,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:28:59,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:28:59,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:28:59,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:28:59,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:28:59,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:28:59,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 01:28:59,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 01:28:59,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 01:28:59,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 01:28:59,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 01:28:59,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 01:28:59,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:28:59,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:28:59,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:28:59,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:28:59,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:28:59,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:28:59,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:28:59,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:28:59,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:28:59,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:28:59,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:28:59,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 01:28:59,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:28:59,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:28:59,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:28:59,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:28:59,950 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:28:59,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:28:59,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:28:59,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:28:59,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:28:59,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:28:59,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:28:59,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:28:59,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:28:59,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:28:59,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:28:59,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:28:59,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:28:59,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:28:59,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:28:59,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:28:59,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:28:59,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:28:59,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:28:59,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:28:59,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:28:59,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:28:59,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:28:59,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:28:59,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:28:59,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:29:00,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:29:00,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:29:00,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:29:00,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:29:00,456 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:29:00,457 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2020-09-17 01:29:00,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426dcba9a/24e4792e45f246e4bbecf78af5d4fb3c/FLAG796933088 [2020-09-17 01:29:01,206 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:29:01,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2020-09-17 01:29:01,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426dcba9a/24e4792e45f246e4bbecf78af5d4fb3c/FLAG796933088 [2020-09-17 01:29:01,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426dcba9a/24e4792e45f246e4bbecf78af5d4fb3c [2020-09-17 01:29:01,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:29:01,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:29:01,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:29:01,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:29:01,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:29:01,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:29:01" (1/1) ... [2020-09-17 01:29:01,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462e4a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:01, skipping insertion in model container [2020-09-17 01:29:01,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:29:01" (1/1) ... [2020-09-17 01:29:01,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:29:01,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:29:02,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:29:02,098 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:29:02,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:29:02,268 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:29:02,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02 WrapperNode [2020-09-17 01:29:02,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:29:02,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:29:02,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:29:02,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:29:02,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:29:02,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:29:02,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:29:02,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:29:02,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (1/1) ... [2020-09-17 01:29:02,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:29:02,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:29:02,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:29:02,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:29:02,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (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 [2020-09-17 01:29:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:29:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:29:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:29:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:29:02,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:29:02,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:29:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:29:02,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:29:02,460 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 01:29:02,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 01:29:02,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:29:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:29:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:29:02,470 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:29:02,923 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:29:02,924 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:29:02,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:29:02 BoogieIcfgContainer [2020-09-17 01:29:02,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:29:02,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:29:02,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:29:02,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:29:02,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:29:01" (1/3) ... [2020-09-17 01:29:02,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbf5795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:29:02, skipping insertion in model container [2020-09-17 01:29:02,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:02" (2/3) ... [2020-09-17 01:29:02,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbf5795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:29:02, skipping insertion in model container [2020-09-17 01:29:02,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:29:02" (3/3) ... [2020-09-17 01:29:02,940 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2020-09-17 01:29:02,952 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:29:02,952 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:29:02,963 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:29:02,965 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:29:02,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,997 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:02,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,001 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,007 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,017 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,018 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:03,043 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 01:29:03,067 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:29:03,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:29:03,068 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:29:03,068 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:29:03,068 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:29:03,068 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:29:03,069 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:29:03,069 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:29:03,086 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:03,088 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:03,136 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:29:03,136 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:29:03,142 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:29:03,146 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:03,168 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:29:03,168 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:29:03,169 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:29:03,171 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 01:29:03,173 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:29:04,593 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-09-17 01:29:04,699 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-09-17 01:29:04,699 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-17 01:29:04,704 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-17 01:29:04,736 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-17 01:29:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-17 01:29:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:29:04,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:04,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:04,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:04,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:04,758 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-09-17 01:29:04,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:04,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118058985] [2020-09-17 01:29:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:04,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118058985] [2020-09-17 01:29:04,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:04,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:29:04,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869819801] [2020-09-17 01:29:04,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 01:29:04,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:04,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 01:29:04,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:29:04,999 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-17 01:29:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:05,040 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-17 01:29:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 01:29:05,042 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-17 01:29:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:05,066 INFO L225 Difference]: With dead ends: 362 [2020-09-17 01:29:05,067 INFO L226 Difference]: Without dead ends: 298 [2020-09-17 01:29:05,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:29:05,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-17 01:29:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-17 01:29:05,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-17 01:29:05,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-17 01:29:05,195 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-17 01:29:05,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:05,196 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-17 01:29:05,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 01:29:05,196 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-17 01:29:05,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:29:05,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:05,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:05,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:29:05,203 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:05,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:05,203 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-09-17 01:29:05,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:05,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920313731] [2020-09-17 01:29:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:05,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920313731] [2020-09-17 01:29:05,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:05,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:29:05,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132624526] [2020-09-17 01:29:05,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:29:05,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:05,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:29:05,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:29:05,321 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-17 01:29:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:05,340 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-17 01:29:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:29:05,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 01:29:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:05,344 INFO L225 Difference]: With dead ends: 217 [2020-09-17 01:29:05,344 INFO L226 Difference]: Without dead ends: 217 [2020-09-17 01:29:05,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:29:05,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-17 01:29:05,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-17 01:29:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-17 01:29:05,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-17 01:29:05,358 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-17 01:29:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:05,359 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-17 01:29:05,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:29:05,359 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-17 01:29:05,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:29:05,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:05,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:05,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:29:05,361 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:05,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-09-17 01:29:05,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:05,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827340438] [2020-09-17 01:29:05,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:05,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827340438] [2020-09-17 01:29:05,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:05,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:29:05,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523428754] [2020-09-17 01:29:05,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:29:05,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:05,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:29:05,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:29:05,503 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-17 01:29:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:05,541 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-17 01:29:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 01:29:05,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 01:29:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:05,543 INFO L225 Difference]: With dead ends: 136 [2020-09-17 01:29:05,543 INFO L226 Difference]: Without dead ends: 136 [2020-09-17 01:29:05,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:29:05,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-17 01:29:05,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-17 01:29:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-17 01:29:05,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-17 01:29:05,551 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-17 01:29:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:05,551 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-17 01:29:05,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:29:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-17 01:29:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:29:05,553 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:05,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:05,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:29:05,554 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:05,554 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-09-17 01:29:05,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:05,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666319142] [2020-09-17 01:29:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:05,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666319142] [2020-09-17 01:29:05,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:05,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:05,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42843324] [2020-09-17 01:29:05,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:05,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:05,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:05,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:05,624 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-17 01:29:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:05,663 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-17 01:29:05,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:05,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-17 01:29:05,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:05,664 INFO L225 Difference]: With dead ends: 109 [2020-09-17 01:29:05,664 INFO L226 Difference]: Without dead ends: 109 [2020-09-17 01:29:05,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-17 01:29:05,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-17 01:29:05,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-17 01:29:05,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-17 01:29:05,670 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-17 01:29:05,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:05,671 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-17 01:29:05,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-17 01:29:05,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:05,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:05,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:05,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:29:05,673 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:05,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:05,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-09-17 01:29:05,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:05,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517140198] [2020-09-17 01:29:05,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:05,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517140198] [2020-09-17 01:29:05,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:05,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:05,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449812400] [2020-09-17 01:29:05,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:05,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:05,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:05,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:05,768 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-09-17 01:29:05,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:05,807 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-17 01:29:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:05,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:05,809 INFO L225 Difference]: With dead ends: 135 [2020-09-17 01:29:05,809 INFO L226 Difference]: Without dead ends: 85 [2020-09-17 01:29:05,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-17 01:29:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-17 01:29:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-17 01:29:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-09-17 01:29:05,814 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-09-17 01:29:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:05,814 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-09-17 01:29:05,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-09-17 01:29:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:05,816 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:05,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:05,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:29:05,816 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:05,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:05,817 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-09-17 01:29:05,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:05,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427719328] [2020-09-17 01:29:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:05,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427719328] [2020-09-17 01:29:05,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:05,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:05,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805910895] [2020-09-17 01:29:05,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:05,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:05,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:05,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:05,904 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-09-17 01:29:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:05,951 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-09-17 01:29:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:05,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:05,953 INFO L225 Difference]: With dead ends: 99 [2020-09-17 01:29:05,953 INFO L226 Difference]: Without dead ends: 37 [2020-09-17 01:29:05,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-17 01:29:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-17 01:29:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-17 01:29:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-17 01:29:05,956 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-17 01:29:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:05,956 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-17 01:29:05,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-17 01:29:05,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:05,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:05,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:05,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 01:29:05,958 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:05,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-09-17 01:29:05,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:05,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85531836] [2020-09-17 01:29:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:06,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85531836] [2020-09-17 01:29:06,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:06,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:06,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542837437] [2020-09-17 01:29:06,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:06,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:06,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:06,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:06,032 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-09-17 01:29:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:06,072 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-17 01:29:06,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:06,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:06,073 INFO L225 Difference]: With dead ends: 36 [2020-09-17 01:29:06,073 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:29:06,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:06,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:29:06,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:29:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:29:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:29:06,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-17 01:29:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:06,074 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:29:06,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:06,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:29:06,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:29:06,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 01:29:06,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:29:06 BasicIcfg [2020-09-17 01:29:06,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:29:06,082 INFO L168 Benchmark]: Toolchain (without parser) took 4598.48 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.9 MB in the beginning and 212.2 MB in the end (delta: -110.3 MB). Peak memory consumption was 117.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,083 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.78 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 161.1 MB in the end (delta: -59.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.46 ms. Allocated memory is still 202.9 MB. Free memory was 161.1 MB in the beginning and 158.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,085 INFO L168 Benchmark]: Boogie Preprocessor took 32.82 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 157.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,086 INFO L168 Benchmark]: RCFGBuilder took 562.38 ms. Allocated memory is still 202.9 MB. Free memory was 157.1 MB in the beginning and 135.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,087 INFO L168 Benchmark]: TraceAbstraction took 3148.15 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 134.3 MB in the beginning and 212.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:06,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.78 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 161.1 MB in the end (delta: -59.6 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.46 ms. Allocated memory is still 202.9 MB. Free memory was 161.1 MB in the beginning and 158.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.82 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 157.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 562.38 ms. Allocated memory is still 202.9 MB. Free memory was 157.1 MB in the beginning and 135.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3148.15 ms. Allocated memory was 202.9 MB in the beginning and 247.5 MB in the end (delta: 44.6 MB). Free memory was 134.3 MB in the beginning and 212.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 663 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 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...